Therapeutically active compounds and their methods of use

ABSTRACT

Provided are compounds useful for treating cancer and methods of treating cancer comprising administering to a subject in need thereof a compound described herein.

CLAIM OF PRIORITY

This application claims priority from U.S. Ser. No. 61/584,214, filed Jan. 6, 2012 which is incorporated herein by reference in its entirety.

BACKGROUND OF INVENTION

Isocitrate dehydrogenases (IDHs) catalyze the oxidative decarboxylation of isocitrate to 2-oxoglutarate (i.e., α-ketoglutarate). These enzymes belong to two distinct subclasses, one of which utilizes NAD(+) as the electron acceptor and the other NADP(+). Five isocitrate dehydrogenases have been reported: three NAD(+)-dependent isocitrate dehydrogenases, which localize to the mitochondrial matrix, and two NADP(+)-dependent isocitrate dehydrogenases, one of which is mitochondrial and the other predominantly cytosolic. Each NADP(+)-dependent isozyme is a homodimer.

IDH2 (isocitrate dehydrogenase 2 (NADP+), mitochondrial) is also known as IDH; IDP; IDHM; IDPM; ICD-M; or mNADP-IDH. The protein encoded by this gene is the NADP(+)-dependent isocitrate dehydrogenase found in the mitochondria. It plays a role in intermediary metabolism and energy production. This protein may tightly associate or interact with the pyruvate dehydrogenase complex. Human IDH2 gene encodes a protein of 452 amino acids. The nucleotide and amino acid sequences for IDH2 can be found as GenBank entries NM_002168.2 and NP_002159.2 respectively. The nucleotide and amino acid sequence for human IDH2 are also described in, e.g., Huh et al., Submitted (NOV-1992) to the EMBL/GenBank/DDBJ databases; and The MGC Project Team, Genome Res. 14:2121-2127(2004).

Non-mutant, e.g., wild type, IDH2 catalyzes the oxidative decarboxylation of isocitrate to α-ketoglutarate (α-KG) thereby reducing NAD⁺ (NADP⁺) to NADH (NADPH), e.g., in the forward reaction:

Isocitrate+NAD⁺(NADP⁺)→α-KG+CO₂+NADH(NADPH)+H⁺.

It has been discovered that mutations of IDH2 present in certain cancer cells result in a new ability of the enzyme to catalyze the NAPH-dependent reduction of α-ketoglutarate to R(−)-2-hydroxyglutarate (2HG). 2HG is not formed by wild-type IDH2. The production of 2HG is believed to contribute to the formation and progression of cancer (Dang, L et al, Nature 2009, 462:739-44).

The inhibition of mutant IDH2 and its neoactivity is therefore a potential therapeutic treatment for cancer. Accordingly, there is an ongoing need for inhibitors of IDH2 mutants having alpha hydroxyl neoactivity.

SUMMARY OF INVENTION

Described herein are compounds of Structural Formula I, or a pharmaceutically acceptable salt or hydrate thereof:

wherein:

-   -   ring A is an optionally substituted 5-6 member monocyclic aryl         or monocyclic heteroaryl;     -   ring B is an optionally substituted 5-6 member monocyclic aryl         or monocyclic heteroaryl;     -   R¹ and R³ are each independently selected from hydrogen, C₁-C₄         alkyl, C₁-C₄ haloalkyl, —O—C₁-C₄ alkyl, and CN, wherein any         alkyl portion of R¹ is optionally substituted with —OH, NH₂,         NH(C₁-C₄ alkyl), or N(C₁-C₄ alkyl)₂;     -   R² is selected from: —(C₁-C₆ alkyl), —(C₂-C₆ alkenyl or         alkynyl), —(C₁-C₆ alkylene)-N(R⁶)—(C₁-C₆ alkylene)-O—(C₁-C₆         alkyl), —(C₁-C₆ alkylene)-N(R⁶)—(C₀-C₆ alkylene)-Q, —(C₁-C₆         alkylene)-N(R⁶)(R⁶), —(C₁-C₆ alkylene)-N(R⁶)—S(O)₁₋₂—(C₁-C₆         alkyl), —(C₁-C₆ alkylene)-N(R⁶)—S(O)₁₋₂—(C₀-C₆ alkyl)-Q, —(C₁-C₆         alkylene)-S(O)₁₋₂—N(R⁶)(R⁶), —(C₁-C₄         alkylene)-S(O)₁₋₂—N(R⁶)—(C₁-C₆ alkylene)-Q, —C(O)N(R⁶)—(C₁-C₆         alkylene)-C(O)—(C₀-C₆ alkylene)-O—(C₁-C₆ alkyl),         —C(O)N(R⁶)—(C₁-C₆ alkylene)-C(O)—(C₀-C₆ alkylene)-O—(C₀-C₆         alkylene)-Q, —(C₁-C₆ alkylene)-O—C(O)—(C₁-C₆ alkyl), —(C₁-C₆         alkylene)-O—C(O)—(C₀-C₆ alkyl)-Q, —(C₁-C₆ alkylene)-O—(C₁-C₆         alkyl), —(C₁-C₆ alkylene)-O—(C₁-C₆ alkylene)-Q, —(C₀-C₆         alkylene)-C(O)—(C₀-C₆ alkylene)-O—(C₁-C₆ alkyl), —(C₀-C₆         alkylene)-C(O)—(C₀-C₆ alkylene)-O—(C₁-C₆ alkylene)-Q, —(C₁-C₆         alkylene)-O—C(O)—(C₁-C₆ alkyl), —(C₁-C₆ alkylene)-O—C(O)—(C₀-C₆         alkylene)-Q, —(C₀-C₆ alkylene)-C(O)N(R⁶)—(C₁-C₆ alkyl), —(C₀-C₆         alkylene)-C(O)N(R⁶)—(C₀-C₆ alkylene)-Q, —(C₁-C₆         alkylene)-N(R⁶)C(O)—(C₁-C₆ alkyl), —(C₁-C₆         alkylene)-N(R⁶)C(O)—(C₀-C₆ alkylene)-Q, —(C₀-C₆         alkylene)-S(O)₀₋₂—(C₁-C₆ alkyl), —(C₀-C₆         alkylene)-S(O)₀₋₂—(C₀-C₆ alkylene)-Q, —(C₁-C₆         alkylene)-N(R⁶)—C(O)—N(R⁶)—(C₁-C₆ alkyl), —(C₀-C₆ alkylene)-Q,         —(C₀-C₆ alkylene)-C(O)—(C₁-C₆ alkyl), —(C₀-C₆         alkylene)-C(O)—(C₀-C₆ alkylene)-Q, wherein:     -   any alkyl or alkylene moiety present in R² is optionally         substituted with one or more —OH, —O(C₁-C₄ alkyl) or halo;     -   any terminal methyl moiety present in R² is optionally replaced         with —CH₂OH, CF₃, —CH₂F, —CH₂Cl, C(O)CH₃, C(O)CF₃, CN, or CO₂H;     -   each R⁶ is independently selected from hydrogen and C₁-C₆ alkyl;         and     -   Q is selected from aryl, heteroaryl, carbocyclyl and         heterocyclyl, any of which is optionally substituted; or     -   R¹ and R³ are optionally taken together with the carbon to which         they are attached to form C(═O); or     -   R¹ and R² are optionally taken together to form substituted         carbocyclyl, optionally substituted heterocyclyl or optionally         substituted heteroaryl, wherein:     -   a. when ring A is unsubstituted phenyl, and ring B is phenyl         substituted by methoxy or ethoxy; then said phenyl of ring B is         not further substituted by oxazolyl;     -   b. when ring A is optionally substituted phenyl or optionally         substituted pyridyl, and ring B is optionally substituted         phenyl; then the portion of the compound represented by         —NH—C(R¹)(R²)(R³) is not —NH(CH₂)-aryl;     -   c. when ring A is optionally substituted phenyl, and ring B is         optionally substituted phenyl or pyrrolyl; then the portion of         the compound represented by —NH—C(R¹)(R²)(R³) is not         —NH(CH₂)C(O)NH₂;     -   d. when ring A is phenyl substituted with 2 or more hydroxyl or         methoxy, and ring B is optionally substituted phenyl; then the         portion of the compound represented by —NH—C(R¹)(R²)(R³) is not         —NH-cycloheptyl;     -   e. when ring A is optionally substituted phenyl and ring B is         optionally substituted phenyl; then R¹ and R³ do not form         2,2,6,6,-tetramethylpiperidin-4-yl;     -   f. when ring A and ring B are optionally substituted phenyl;         then the portion of the compound represented by         —NH—C(R¹)(R²)(R³) is not cysteine, optionally substituted         phenylalanine or leucine or methyl ester thereof;     -   g. when ring A is phenyl or pyridin-3-yl optionally substituted         with one or more substituents selected from halo, methyl or CF₃,         and ring B is phenyl optionally substituted with one or more         substituents selected from halo, methyl, CF₃, methoxy,         CH═C(phenyl)CN; then the portion of the compound represented by         —NHC(R¹)(R²)(R³) is other than —NH(C₁-C₈         alkylene)-N(R^(a))(R^(a)), —NH-1-(aminomethyl)cyclopentylmethyl,         —NH-4-(aminomethyl)cyclohexylmethyl, wherein each R^(a) is         hydrogen, C₁-C₄ alkyl or two R^(a)s are taken together with the         nitrogen to which they are commonly bound to form morpholin-4-yl         or piperidin-1-yl;     -   h. when ring A is phenyl, 4-chlorophenyl or 4-methyl phenyl and         ring B is 4-chlorophenyl or 3,4-dichlorophenyl; then the portion         of the compound represented by —NHC(R¹)(R²)(R³) is not         —NH-isopropyl;     -   i. when ring A is unsubstituted phenyl and the portion of the         compound represented by —NHC(R¹)(R²)(R³) is —NH—CH₂CH₂N(CH₃)₂,         —NH—CH₂CH₂-morpholin-4-yl or —NH—CH₂CH₂OOH; then ring B is other         than oxadiazole, imidazole, thiazole or oxazole each of which is         substituted with —C(O)NHR^(b), wherein R^(b) is isopropyl,         cyclopropyl or 2-chloro-6-methylphenyl;     -   j. when ring A is phenyl substituted with SO₂OH or SO₂Na and         ring B is phenyl, or when ring B is phenyl substituted with         SO₂OH and ring A is substituted phenyl; then the portion of the         compound represented by —NHC(R¹)(R²)(R³) is not —NH(CH₂)₂OH or         —NH(CH₂)CH(OH)CH₃; and     -   k. the compound is other than:

-   (E)-3-(4-((4-((3-(diethylamino)propyl)amino)-6-phenyl-1,3,5-triazin-2-yl)amino)-2-methoxyphenyl)-2-phenylacrylonitrile,

-   4-((4-((furan-2-ylmethyl)amino)-6-(pyridin-4-yl)-1,3,5-triazin-2-yl)amino)phenol,     3-(4-((5-aminopentyl)amino)-6-((3-fluorophenyl)amino)-1,3,5-triazin-2-yl)phenol,

-   N²,6-bis(3-fluorophenyl)-N⁴-(piperidin-3-yl)-1,3,5-triazine-2,4-diamine,

-   N²-butyl-6-phenyl-N⁴-(p-tolyl)-1,3,5-triazine-2,4-diamine,     N²-cyclohexyl-N⁴,6-diphenyl-1,3,5-triazine-2,4-diamine,

-   (R)-3-((4-(3-chlorophenyl)-6-(pyrrolidin-3-ylamino)-1,3,5-triazin-2-yl)amino)-4-methylbenzamide,

-   2-chloro-4-(methylsulfonyl)-N-[4-(phenylamino)-6-(2-pyridinyl)-1,3,5-triazin-2-yl]-benzamide,

-   N²-(2-methoxyethyl)-N⁴-phenyl-6-[5-[6-(2,2,2-trifluoroethoxy)-3-pyridinyl]-1,2,4-oxadiazol-3-yl]-1,3,5-triazine-2,4-diamine,

-   N²-(2-furanylmethyl)-6-phenyl-N⁴-[3-(trifluoromethyl)phenyl]-1,3,5-triazine-2,4-diamine,

-   6-(3-methoxyphenyl)-N²-methyl-N⁴-(3-nitrophenyl)-1,3,5-triazine-2,4-diamine,

-   N²-butyl-N⁴-(4-methylphenyl)-6-phenyl-1,3,5-triazine-2,4-diamine,     and

-   4-[[4-(5-chloro-2-methylphenyl)-6-(methylamino)]-1,3,5-triazin-2-yl]amino-benzenemethanol.

The compound of Formula I or II or as described in any one of the embodiments herein inhibits mutant IDH2, particularly mutant IDH2 having alpha hydroxyl neoactivity. Also described herein are pharmaceutical compositions comprising a compound of Formula I and methods of using such compositions to treat cancers characterized by the presence of a mutant IDH2.

DETAILED DESCRIPTION

The details of construction and the arrangement of components set forth in the following description or illustrated in the drawings are not meant to be limiting. Other embodiments and different ways to practice the invention are expressly included. Also, the phraseology and terminology used herein is for the purpose of description and should not be regarded as limiting. The use of “including,” “comprising,” or “having,” “containing”, “involving”, and variations thereof herein, is meant to encompass the items listed thereafter and equivalents thereof as well as additional items.

Definitions

The term “halo” or “halogen” refers to any radical of fluorine, chlorine, bromine or iodine.

The term “alkyl” refers to a fully saturated or unsaturated hydrocarbon chain that may be a straight chain or branched chain, containing the indicated number of carbon atoms. For example, C₁-C₁₂ alkyl indicates that the group may have from 1 to 12 (inclusive) carbon atoms in it. The term “haloalkyl” refers to an alkyl in which one or more hydrogen atoms are replaced by halo, and includes alkyl moieties in which all hydrogens have been replaced by halo (e.g., perfluoroalkyl). The terms “arylalkyl” or “aralkyl” refer to an alkyl moiety in which an alkyl hydrogen atom is replaced by an aryl group. Aralkyl includes groups in which more than one hydrogen atom has been replaced by an aryl group. Examples of “arylalkyl” or “aralkyl” include benzyl, 2-phenylethyl, 3-phenylpropyl, 9-fluorenyl, benzhydryl, and trityl groups. The term “alkyl” includes “alkenyl” and “alkynyl”.

The term “alkylene” refers to a divalent alkyl, e.g., —CH₂—, —CH₂CH₂—, —CH₂CH₂CH₂— and —CH₂CH(CH₃)CH₂—.

The term “alkenyl” refers to a straight or branched hydrocarbon chain containing 2-12 carbon atoms and having one or more double bonds. Examples of alkenyl groups include, but are not limited to, allyl, propenyl, 2-butenyl, 3-hexenyl and 3-octenyl groups. One of the double bond carbons may optionally be the point of attachment of the alkenyl substituent.

The term “alkynyl” refers to a straight or branched hydrocarbon chain containing 2-12 carbon atoms and characterized in having one or more triple bonds. Examples of alkynyl groups include, but are not limited to, ethynyl, propargyl, and 3-hexynyl. One of the triple bond carbons may optionally be the point of attachment of the alkynyl substituent.

The term “alkoxy” refers to an —O-alkyl radical. The term “haloalkoxy” refers to an alkoxy in which one or more hydrogen atoms are replaced by halo, and includes alkoxy moieties in which all hydrogens have been replaced by halo (e.g., perfluoroalkoxy).

Unless otherwise specified, the term “aryl” refers to a fully aromatic monocyclic, bicyclic, or tricyclic hydrocarbon ring system. Examples of aryl moieties are phenyl, naphthyl, and anthracenyl. Unless otherwise specified, any ring atom in an aryl can be substituted by one or more substituents. The term “monocyclic aryl” means a monocyclic fully romatic hydrocarbon ring system, optionally substituted by one or more substituents which can not form a fused bicyclic or tricyclic ring.

The term “carbocyclyl” refers to a non-aromatic, monocyclic, bicyclic, or tricyclic hydrocarbon ring system. Carbocyclyl groups include fully saturated ring systems (e.g., cycloalkyls), and partially saturated ring systems.

The term “cycloalkyl” as employed herein includes saturated cyclic, bicyclic, tricyclic, or polycyclic hydrocarbon groups having 3 to 12 carbons. Any ring atom can be substituted (e.g., by one or more substituents). Examples of cycloalkyl moieties include, but are not limited to, cyclopropyl, cyclohexyl, methylcyclohexyl, adamantyl, and norbornyl.

Unless otherwise specified, the term “heteroaryl” refers to a fully aromatic 5-8 membered monocyclic, 8-12 membered bicyclic, or 11-14 membered tricyclic ring system having 1-3 heteroatoms if monocyclic, 1-6 heteroatoms if bicyclic, or 1-9 heteroatoms if tricyclic, said heteroatoms selected from O, N, or S (or the oxidized forms such as N⁺—O⁻, S(O) and S(O)₂). The term “monocyclic heteroaryl” means a monocyclic fully romatic ring system having 1-3 heteroatoms, optionally substituted by one or more substituents which can not form a fused bicyclic or tricyclic ring.

The term “heterocyclyl” refers to a nonaromatic, 3-10 membered monocyclic, 8-12 membered bicyclic, or 11-14 membered tricyclic ring system having 1-3 heteroatoms if monocyclic, 1-6 heteroatoms if bicyclic, or 1-9 heteroatoms if tricyclic, said heteroatoms selected from O, N, or S (or the oxidized forms such as N⁺—O⁻, S(O) and S(O)₂). The heteroatom may optionally be the point of attachment of the heterocyclyl substituent. Examples of heterocyclyl include, but are not limited to, tetrahydrofuranyl, tetrahydropyranyl, piperidinyl, morpholino, pyrrolinyl, pyrimidinyl, and pyrrolidinyl. Heterocyclyl groups include fully saturated ring systems, and partially saturated ring systems.

Bicyclic and tricyclic ring systems containing one or more heteroatoms and both aromatic and non-aromatic rings are considered to be heterocyclyl or heteroaryl groups. Bicyclic or tricyclic ring systems where an aryl or a heteroaryl is fused to a carbocyclyl or heterocyclyl and the point of attachment from the ring system to the rest of the molecule is through an aromatic ring are considered to be aryl or heteroaryl groups, respectively. Bicyclic or tricyclic ring systems where an aryl or a heteroaryl is fused to a carbocyclyl or heterocyclyl and the point of attachment from the ring system to the rest of the molecule is through the non-aromatic ring are considered to be carbocyclyl (e.g., cycloalkyl) or heterocyclyl groups, respectively.

Aryl, heteroaryl, carbocyclyl (including cycloalkyl), and heterocyclyl groups, either alone or a part of a group (e.g., the aryl portion of an aralkyl group), are optionally substituted at one or more substitutable atoms with, unless specified otherwise, substituents independently selected from: halo, —C≡N, C₁-C₄ alkyl, ═O, —OR^(b), —OR^(b′), —SR^(b), —SR^(b′), —(C₁-C₄ alkyl)-N(R^(b))(R^(b)), —(C₁-C₄ alkyl)-N(R^(b))(R^(b′)), —N(R^(b))(R^(b)), —N(R^(b))(R^(b′)), —O—(C₁-C₄ alkyl)-N(R^(b))(R^(b)), —O—(C₁-C₄ alkyl)-N(R^(b))(R^(b′)), —(C₁-C₄ alkyl)-O—(C₁-C₄ alkyl)-N(R^(b))(R^(b)), —(C₁-C₄ alkyl)-O—(C₁-C₄ alkyl)-N(R^(b))(R^(b′)), —C(O)—N(R^(b))(R^(b)), —(C₁-C₄ alkyl)-C(O)—N(R^(b))(R^(b)), —(C₁-C₄ alkyl)-C(O)—N(R^(b))(R^(b′)), —OR^(b′), R^(b′), —C(O)(C₁-C₄ alkyl), —C(O)R^(b′), —C(O)N(R^(b′))(R^(b)), —N(R^(b))C(O)(R^(b)), —N(R^(b))C(O)(R^(b′)), —N(R^(b))SO₂(R^(b)), —SO₂N(R^(b))(R^(b)), —N(R^(b))SO₂(R^(b′)), and —SO₂N(R^(b))(R^(b′)), wherein any alkyl substituent is optionally further substituted with one or more of —OH, —O—(C₁-C₄ alkyl), halo, —NH₂, —NH(C₁-C₄ alkyl), or —N(C₁-C₄ alkyl)₂;

-   -   each R^(b) is independently selected from hydrogen, and —C₁-C₄         alkyl; or     -   two R^(b)s are taken together with the nitrogen atom to which         they are bound to form a 4- to 8-membered heterocyclyl         optionally comprising one additional heteroatom selected from N,         S, and O; and     -   each R^(b′) is independently selected from C₃-C₇ carbocyclyl,         phenyl, heteroaryl, and heterocyclyl, wherein one or more         substitutable positions on said phenyl, cycloalkyl, heteroaryl         or heterocycle substituent is optionally further substituted         with one or more of —(C₁-C₄ alkyl), —(C₁-C₄ fluoroalkyl), —OH,         —O—(C₁-C₄ alkyl), —O—(C₁-C₄ fluoroalkyl), halo, —NH₂, —NH(C₁-C₄         alkyl), or —N(C₁-C₄ alkyl)₂.

Heterocyclyl groups, either alone or as part of a group, are optionally substituted on one or more any substitutable nitrogen atom with oxo, —C₁-C₄ alkyl, or fluoro-substituted C₁-C₄ alkyl.

The term “substituted” refers to the replacement of a hydrogen atom by another group.

As used herein, the term “elevated levels of 2HG” means 10%, 20% 30%, 50%, 75%, 100%, 200%, 500% or more 2HG then is present in a subject that does not carry a mutant IDH2 allele. The term “elevated levels of 2HG” may refer to the amount of 2HG within a cell, within a tumor, within an organ comprising a tumor, or within a bodily fluid.

The term “bodily fluid” includes one or more of amniotic fluid surrounding a fetus, aqueous humour, blood (e.g., blood plasma), serum, Cerebrospinal fluid, cerumen, chyme, Cowper's fluid, female ejaculate, interstitial fluid, lymph, breast milk, mucus (e.g., nasal drainage or phlegm), pleural fluid, pus, saliva, sebum, semen, serum, sweat, tears, urine, vaginal secretion, or vomit.

As used herein, the terms “inhibit” or “prevent” include both complete and partial inhibition and prevention. An inhibitor may completely or partially inhibit the intended target.

The term “treat” means decrease, suppress, attenuate, diminish, arrest, or stabilize the development or progression of a disease/disorder (e.g., a cancer), lessen the severity of the disease/disorder (e.g., a cancer) or improve the symptoms associated with the disease/disorder (e.g., a cancer).

As used herein, an amount of a compound effective to treat a disorder, or a “therapeutically effective amount” refers to an amount of the compound which is effective, upon single or multiple dose administration to a subject, in treating a cell, or in curing, alleviating, relieving or improving a subject with a disorder beyond that expected in the absence of such treatment.

As used herein, the term “subject” is intended to include human and non-human animals. Exemplary human subjects include a human patient (referred to as a patient) having a disorder, e.g., a disorder described herein or a normal subject. The term “non-human animals” of one aspect of the invention includes all vertebrates, e.g., non-mammals (such as chickens, amphibians, reptiles) and mammals, such as non-human primates, domesticated and/or agriculturally useful animals, e.g., sheep, dog, cat, cow, pig, etc.

Compounds

Provided is a compound of Structural Formula I, or a pharmaceutically acceptable salt or hydrate thereof:

wherein:

ring A is an optionally substituted 5-6 member monocyclic aryl or monocyclic heteroaryl;

ring B is an optionally substituted 5-6 member monocyclic aryl or monocyclic heteroaryl;

R¹ and R³ are each independently selected from hydrogen, C₁-C₄ alkyl, C₁-C₄ haloalkyl, —O—C₁-C₄ alkyl, and CN, wherein any alkyl portion of R¹ is optionally substituted with —OH, NH₂, NH(C₁-C₄ alkyl), or N(C₁-C₄ alkyl)₂;

R² is selected from: —(C₁-C₆ alkyl), —(C₂-C₆ alkenyl or alkynyl), —(C₁-C₆ alkylene)-N(R⁶)—(C₁-C₆ alkylene)-O—(C₁-C₆ alkyl), —(C₁-C₆ alkylene)-N(R⁶)—(C₀-C₆ alkylene)-Q, —(C₁-C₆ alkylene)-N(R⁶)(R⁶)—(C₁-C₆ alkylene)-N(R⁶)—S(O)₁₂—(C₁-C₆ alkyl), —(C₁-C₆ alkylene)-N(R⁶)—S(O)₁₋₂—(C₀-C₆ alkyl)-Q, —(C₁-C₆ alkylene)-S(O)₁₋₂—N(R⁶)(R⁶), —(C₁-C₄ alkylene)-S(O)₁₋₂—N(R⁶)—(C₁-C₆ alkylene)-Q, —C(O)N(R⁶)—(C₁-C₆ alkylene)-C(O)—(C₀-C₆ alkylene)-O—(C₁-C₆ alkyl), —C(O)N(R⁶)—(C₁-C₆ alkylene)-C(O)—(C₀-C₆ alkylene)-O—(C₀-C₆ alkylene)-Q, —(C₁-C₆ alkylene)-O—C(O)—(C₁-C₆ alkyl), —(C₁-C₆ alkylene)-O—C(O)—(C₀-C₆ alkyl)-Q, —(C₁-C₆ alkylene)-O—(C₁-C₆ alkyl), —(C₁-C₆ alkylene)-O—(C₁-C₆ alkylene)-Q, —(C₀-C₆ alkylene)-C(O)—(C₀-C₆ alkylene)-O—(C₁-C₆ alkyl), —(C₀-C₆ alkylene)-C(O)—(C₀-C₆ alkylene)-O—(C₁-C₆ alkylene)-Q, —(C₁-C₆ alkylene)-O—C(O)—(C₁-C₆ alkyl), —(C₁-C₆ alkylene)-O—C(O)—(C₀-C₆ alkylene)-Q, —(C₀-C₆ alkylene)-C(O)N(R⁶)—(C₁-C₆ alkyl), —(C₀-C₆ alkylene)-C(O)N(R⁶)—(C₀-C₆ alkylene)-Q, —(C₁-C₆ alkylene)-N(R⁶)C(O)—(C₁-C₆ alkyl), —(C₁-C₆ alkylene)-N(R⁶)C(O)—(C₀-C₆ alkylene)-Q, —(C₀-C₆ alkylene)-S(O)₀₋₂—(C₁-C₆ alkyl), —(C₀-C₆ alkylene)-S(O)₀₋₂—(C₀-C₆ alkylene)-Q, —(C₁-C₆ alkylene)-N(R⁶)—C(O)—N(R⁶)—(C₁-C₆ alkyl), —(C₀-C₆ alkylene)-Q, —(C₀-C₆ alkylene)-C(O)—(C₁-C₆ alkyl), —(C₀-C₆ alkylene)-C(O)—(C₀-C₆ alkylene)-Q, wherein:

any alkyl or alkylene moiety present in R² is optionally substituted with one or more —OH, —O(C₁-C₄ alkyl) or halo;

any terminal methyl moiety present in R² is optionally replaced with —CH₂OH, CF₃, —CH₂F, —CH₂Cl, C(O)CH₃, C(O)CF₃, CN, or CO₂H;

each R⁶ is independently selected from hydrogen and C₁-C₆ alkyl; and

Q is selected from aryl, heteroaryl, carbocyclyl and heterocyclyl; and Q is optionally substituted; or

-   -   R¹ and R³ are optionally taken together with the carbon to which         they are attached to form C(═O); or     -   R¹ and R² are optionally taken together to form an optionally         substituted carbocyclyl, optionally substituted heterocyclyl or         optionally substituted heteroaryl; wherein:     -   a. when ring A is unsubstituted phenyl, and ring B is phenyl         substituted by methoxy or ethoxy; then said phenyl of ring B is         not further substituted by oxazolyl;     -   b. when ring A is optionally substituted phenyl or optionally         substituted pyridyl, and ring B is optionally substituted         phenyl; then the portion of the compound represented by         —NH—C(R¹)(R²)(R³) is not —NH(CH₂)-aryl;     -   c. when ring A is optionally substituted phenyl, and ring B is         optionally substituted phenyl or pyrrolyl; then the portion of         the compound represented by —NH—C(R¹)(R²)(R³) is not         —NH(CH₂)C(O)NH₂;     -   d. when ring A is phenyl substituted with 2 or more hydroxyl or         methoxy, and ring B is optionally substituted phenyl; then the         portion of the compound represented by —NH—C(R¹)(R²)(R³) is not         —NH-cycloheptyl;     -   e. when ring A is optionally substituted phenyl and ring B is         optionally substituted phenyl; then R¹ and R³ do not form         2,2,6,6,-tetramethylpiperidin-4-yl;     -   f. when ring A and ring B are optionally substituted phenyl;         then the portion of the compound represented by         —NH—C(R¹)(R²)(R³) is not cysteine, optionally substituted         phenylalanine or leucine or methyl ester thereof;     -   g. when ring A is phenyl or pyridin-3-yl optionally substituted         with one or more substituents selected from halo, methyl or CF₃,         and ring B is phenyl optionally substituted with one or more         substituents selected from halo, methyl, CF₃, methoxy,         CH═C(phenyl)CN; then the portion of the compound represented by         —NHC(R¹)(R²)(R³) is other than —NH(C₁-C₈         alkylene)-N(R^(a))(R^(a)), —NH-1-(aminomethyl)cyclopentylmethyl,         —NH-4-(aminomethyl)cyclohexylmethyl, wherein each R^(a) is         hydrogen, C₁-C₄ alkyl or two R^(a)s are taken together with the         nitrogen to which they are commonly bound to form morpholin-4-yl         or piperidin-1-yl;     -   h. when ring A is phenyl, 4-chlorophenyl or 4-methyl phenyl and         ring B is 4-chlorophenyl or 3,4-dichlorophenyl; then the portion         of the compound represented by —NHC(R¹)(R²)(R³) is not         —NH-isopropyl;     -   i. when ring A is unsubstituted phenyl and the portion of the         compound represented by —NHC(R¹)(R²)(R³) is —NH—CH₂CH₂N(CH₃)₂,         —NH—CH₂CH₂-morpholin-4-yl or —NH—CH₂CH₂OH; then ring B is other         than oxadiazole, imidazole, thiazole or oxazole each of which is         substituted with —C(O)NHR^(b), wherein R^(b) is isopropyl,         cyclopropyl or 2-chloro-6-methylphenyl;     -   j. when ring A is phenyl substituted with SO₂OH or SO₂Na and         ring B is phenyl, or when ring B is phenyl substituted with         SO₂OH and ring A is substituted phenyl; then the portion of the         compound represented by —NHC(R¹)(R²)(R³) is not —NH(CH₂)₂OH or         —NH(CH₂)CH(OH)CH₃; and     -   k. the compound is other than:

-   (E)-3-(4-((4-((3-(diethylamino)propyl)amino)-6-phenyl-1,3,5-triazin-2-yl)amino)-2-methoxyphenyl)-2-phenylacrylonitrile,

-   4-((4-((furan-2-ylmethyl)amino)-6-(pyridin-4-yl)-1,3,5-triazin-2-yl)amino)phenol,

-   3-(4-((5-aminopentyl)amino)-6-((3-fluorophenyl)amino)-1,3,5-triazin-2-yl)phenol,

-   N²,6-bis(3-fluorophenyl)-N⁴-(piperidin-3-yl)-1,3,5-triazine-2,4-diamine,

-   N²-butyl-6-phenyl-N⁴-(p-tolyl)-1,3,5-triazine-2,4-diamine,     N²-cyclohexyl-N⁴,6-diphenyl-1,3,5-triazine-2,4-diamine,

-   (R)-3-((4-(3-chlorophenyl)-6-(pyrrolidin-3-ylamino)-1,3,5-triazin-2-yl)amino)-4-methylbenzamide,

-   2-chloro-4-(methylsulfonyl)-N-[4-(phenylamino)-6-(2-pyridinyl)-1,3,5-triazin-2-yl]-benzamide,

-   N²-(2-methoxyethyl)-N⁴-phenyl-6-[5-[6-(2,2,2-trifluoroethoxy)-3-pyridinyl]-1,2,4-oxadiazol-3-yl]-1,3,5-triazine-2,4-diamine,

-   N²-(2-furanylmethyl)-6-phenyl-N⁴-[3-(trifluoromethyl)phenyl]-1,3,5-triazine-2,4-diamine,

-   6-(3-methoxyphenyl)-N²-methyl-N⁴-(3-nitrophenyl)-1,3,5-triazine-2,4-diamine,

-   N²-butyl-N⁴-(4-methylphenyl)-6-phenyl-1,3,5-triazine-2,4-diamine,     and

-   4-[[4-(5-chloro-2-methylphenyl)-6-(methylamino)]-1,3,5-triazin-2-yl]amino-benzenemethanol.

Also provided is a compound of Structural Formula I, or a pharmaceutically acceptable salt or hydrate thereof:

wherein: ring A is an optionally substituted 5-6 member monocyclic aryl or monocyclic heteroaryl;

-   -   ring B is an optionally substituted 5-6 member monocyclic aryl         or monocyclic heteroaryl;     -   R¹ and R³ are each independently selected from hydrogen, C₁-C₄         alkyl, C₁-C₄ haloalkyl, —O—C₁-C₄ alkyl, and CN, wherein any         alkyl portion of R¹ is optionally substituted with —OH, NH₂,         NH(C₁-C₄ alkyl), or N(C₁-C₄ alkyl)₂;     -   R² is selected from: —(C₁-C₆ alkyl), —(C₂-C₆ alkenyl or         alkynyl), —(C₁-C₆ alkylene)-N(R⁶)—(C₁-C₆ alkylene)-O—(C₁-C₆         alkyl), —(C₁-C₆ alkylene)-N(R⁶)—(C₀-C₆ alkylene)-Q, —(C₁-C₆         alkylene)-N(R⁶)(R⁶), —(C₁-C₆ alkylene)-N(R⁶)—S(O)₁₋₂—(C₁-C₆         alkyl), —(C₁-C₆ alkylene)-N(R⁶)—S(O)₁₋₂—(C₀-C₆ alkyl)-Q, —(C₁-C₆         alkylene)-S(O)₁₋₂—N(R⁶)(R⁶), —(C₁-C₄         alkylene)-S(O)₁₋₂—N(R⁶)—(C₁-C₆ alkylene)-Q, —C(O)N(R⁶)—(C₁-C₆         alkylene)-C(O)—(C₀-C₆ alkylene)-O—(C₁-C₆ alkyl),         —C(O)N(R⁶)—(C₁-C₆ alkylene)-C(O)—(C₀-C₆ alkylene)-O—(C₀-C₆         alkylene)-Q, —(C₁-C₆ alkylene)-O—C(O)—(C₁-C₆ alkyl), —(C₁-C₆         alkylene)-O—C(O)—(C₀-C₆ alkyl)-Q, —(C₁-C₆ alkylene)-O—(C₁-C₆         alkyl), —(C₁-C₆ alkylene)-O—(C₁-C₆ alkylene)-Q, —(C₀-C₆         alkylene)-C(O)—(C₀-C₆ alkylene)-O—(C₁-C₆ alkyl), —(C₀-C₆         alkylene)-C(O)—(C₀-C₆ alkylene)-O—(C₁-C₆ alkylene)-Q, —(C₁-C₆         alkylene)-O—C(O)—(C₁-C₆ alkyl), —(C₁-C₆ alkylene)-O—C(O)—(C₀-C₆         alkylene)-Q, —(C₀-C₆ alkylene)-C(O)N(R⁶)—(C₁-C₆ alkyl), —(C₀-C₆         alkylene)-C(O)N(R⁶)—(C₀-C₆ alkylene)-Q, —(C₁-C₆         alkylene)-N(R⁶)C(O)—(C₁-C₆ alkyl), —(C₁-C₆         alkylene)-N(R⁶)C(O)—(C₀-C₆ alkylene)-Q, —(C₀-C₆         alkylene)-S(O)₀₋₂—(C₁-C₆ alkyl), —(C₀-C₆         alkylene)-S(O)₀₋₂—(C₀-C₆ alkylene)-Q, —(C₁-C₆         alkylene)-N(R⁶)—C(O)—N(R⁶)—(C₁-C₆ alkyl), —(C₀-C₆ alkylene)-Q,         —(C₀-C₆ alkylene)-C(O)—(C₁-C₆ alkyl), —(C₀-C₆         alkylene)-C(O)—(C₀-C₆ alkylene)-Q, wherein:     -   any alkyl or alkylene moiety present in R² is optionally         substituted with one or more —OH, —O(C₁-C₄ alkyl) or halo;     -   any terminal methyl moiety present in R² is optionally replaced         with —CH₂OH, CF₃, —CH₂F, —CH₂Cl, C(O)CH₃, C(O)CF₃, CN, or CO₂H;     -   each R⁶ is independently selected from hydrogen and C₁-C₆ alkyl;         and     -   Q is selected from aryl, heteroaryl, carbocyclyl and         heterocyclyl, any of which is optionally substituted; or     -   R¹ and R³ are optionally taken together with the carbon to which         they are attached to form C(═O), or     -   R¹ and R² are optionally taken together to form substituted         carbocyclyl or optionally substituted heterocyclyl, wherein:     -   a. when ring A is unsubstituted phenyl, and ring B is phenyl         substituted by methoxy or ethoxy; then said phenyl of ring B is         not further substituted oxazolyl;     -   b. when ring A is optionally substituted phenyl or optionally         substituted pyridyl; then the portion of the compound         represented by —NH—C(R¹)(R²)(R³) is not —NH(CH₂)-aryl;     -   c. when ring A is optionally substituted phenyl, and ring B is         optionally substituted phenyl or pyrrolyl; then the portion of         the compound represented by —NH—C(R¹)(R²)(R³) is not         —NH(CH₂)C(O)NH₂;     -   d. when ring A is phenyl substituted with 2 or more hydroxyl or         methoxy, and ring B is optionally substituted phenyl; then the         portion of the compound represented by —NH—C(R¹)(R²)(R³) is not         —NH-cycloheptyl;     -   e. when ring A is optionally substituted phenyl and ring B is         optionally substituted phenyl; then R¹ and R³ do not form         2,2,6,6,-tetramethylpiperidin-4-yl;     -   f. when ring A and ring B are optionally substituted phenyl;         then the portion of the compound represented by         —NH—C(R¹)(R²)(R³) is not cysteine, optionally substituted         phenylalanine or leucine;     -   g. when ring A is phenyl or pyridin-3-yl optionally substituted         with one or more substituents selected from halo, methyl or CF₃,         and ring B is phenyl optionally substituted with one or more         substituents selected from halo, methyl or CF₃; then the portion         of the compound represented by —NHC(R¹)(R²)(R³) is other than         —NH(C₁-C₈ alkylene)-N(R^(a))(R^(a)),         —NH-1-(aminomethyl)cyclopentylmethyl,         —NH-4-(aminomethyl)cyclohexylmethyl, wherein each R^(a) is         hydrogen, C₁-C₃ alkyl or two R^(a)s are taken together with the         nitrogen to which they are commonly bound to form morpholin-4-yl         or pipieridin-1-yl;     -   h. when ring A is phenyl, 4-chlorophenyl or 4-methyl phenyl and         ring B is 4-chlorophenyl or 3,4-dichlorophenyl; then the portion         of the compound represented by —NHC(R¹)(R²)(R³) is not         —NH-isopropyl;     -   i. when ring A is unsubstituted phenyl and the portion of the         compound represented by —NHC(R¹)(R²)(R³) is —NH—CH₂CH₂N(CH₃)₂,         —NH—CH₂CH₂-morpholin-4-yl or —NH—CH₂CH₂OH; then ring B is other         than oxadiazole, thiazole or oxazole each of which is         substituted with —C(O)NHR^(b), wherein R^(b) is isopropyl,         cyclopropyl or 2-chloro-6-methylphenyl;     -   j. when ring A is phenyl substituted with SO₂OH or SO₂Na, and         ring B is phenyl; then the portion of the compound represented         by —NHC(R¹)(R²)(R³) is not —NH(CH₂)₂OH or —NH(CH₂)CH(OH)CH₃; and     -   k. the compound is other than:

-   (E)-3-(4-((4-((3-(diethylamino)propyl)amino)-6-phenyl-1,3,5-triazin-2-yl)amino)-2-methoxyphenyl)-2-phenylacrylonitrile,     4-((4-((furan-2-ylmethyl)amino)-6-(pyridin-4-yl)-1,3,5-triazin-2-yl)amino)phenol,     3-(4-((5-aminopentyl)amino)-6-((3-fluorophenyl)amino)-1,3,5-triazin-2-yl)phenol,     N²,6-bis(3-fluorophenyl)-N⁴-(piperidin-3-yl)-1,3,5-triazine-2,4-diamine,     N²-butyl-6-phenyl-N⁴-(p-tolyl)-1,3,5-triazine-2,4-diamine,     N²-cyclohexyl-N⁴,6-diphenyl-1,3,5-triazine-2,4-diamine, and     (R)-3-((4-(3-chlorophenyl)-6-(pyrrolidin-3-ylamino)-1,3,5-triazin-2-yl)amino)-4-methylbenzamide.

In some embodiments, R¹ is independently selected from hydrogen, —CH₃, —CH₂CH₃, —CH₂OH, CN, or R¹ and R³ are taken together to form ═O.

In some embodiments, R¹ and R² are taken together to form carbocyclyl or heterocyclyl, either of which is optionally substituted with up to 3 substituents independently selected from halo. C₁-C₄ alkyl, C₁-C₄ haloalkyl, C₁-C₄ alkoxy, —CN, ═O, —OH, and —C(O)C₁-C₄ alkyl.

In some embodiments, R² is —(C₁-C₄ alkyl) optionally substituted with fluoro or —OH; —(C₀-C₄ alkylene)-O—(C₁-C₄ alkyl), —(C₀-C₂ alkylene)-N(R⁶)—(C₁-C₆ alkyl), —(C₀-C₂ alkylene)-Q, and —O—(C₀-C₂ alkylene)-Q, wherein Q is optionally substituted with up to 3 substituents independently selected from C₁-C₄ alkyl, C₁-C₄ haloalkyl, C₁-C₄ alkoxy, ═O, —C(O)—C₁-C₄ alkyl, —CN, and halo. In one aspect of these embodiments, Q is selected from pyridinyl, tetrahydrofuranyl, cyclobutyl, cyclopropyl, phenyl, pyrazolyl, morpholinyl and oxetanyl, wherein Q is optionally substituted with up to 2 substituents independently selected from C₁-C₄ alkyl, C₁-C₄ haloalkyl, ═O, fluoro, chloro, and bromo. In another aspect of these embodiments, Q is selected from pyridinyl, tetrahydrofuranyl, cyclobutyl, cyclopropyl, phenyl, pyrazolyl, morpholinyl and oxetanyl, wherein Q is optionally substituted with up to 2 substituents independently selected from —CH₃ and ═O.

In some embodiments, R¹ and R² are taken together to form cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, tetrahydrofuranyl, tetrahydropyranyl, oxetanyl, bicyclo[2.2.1]heptanyl, oxobicyclo[3.1.0]hexanyl, azetidinyl, phenyl and pyridinyl, any of which is optionally substituted with up to 2 substituents independently selected from C₁-C₄ alkyl, C₁-C₄ alkoxy, C₃-C₆ cycloalkyl, —OH, —C(O)CH₃, fluoro, and chloro.

In some embodiments, ring A is an optionally substituted 6-membered monocyclic aryl. In some embodiments, ring A is an optionally substituted 5-6 membered heteroaryl. In some embodiments, ring A is an optionally substituted 6 membered heteroaryl.

In some embodiments, ring A is selected from phenyl, pyrazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrimidinyl, pyrazinyl, and thiazolyl, wherein ring A is optionally substituted with up to two substituents independently selected from halo, —C₁-C₄ alkyl, —C₁-C₄ haloalkyl, —C₁-C₄ hydroxyalkyl, —NH—S(O)₂—(C₁-C₄ alkyl), —S(O)₂NH(C₁-C₄ alkyl), —CN, —S(O)₂—(C₁-C₄ alkyl), C₁-C₄ alkoxy, —NH(C₁-C₄ alkyl), —OH, —OCF₃, —CN, —NH₂, —C(O)NH₂, —C(O)NH(C₁-C₄ alkyl), —C(O)—N(C₁-C₄ alkyl)₂, and cyclopropyl optionally substituted with OH.

In some embodiments, ring A is selected from phenyl, pyrazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrimidinyl, pyrazinyl, and thiazolyl, wherein ring A is optionally substituted with up to two substituents independently selected from halo, —C₁-C₄ alkyl, —C₁-C₄ haloalkyl, —C₁-C₄ hydroxyalkyl, —NH—S(O)₂—(C₁-C₄ alkyl), —S(O)₂NH(C₁-C₄ alkyl), —CN, —S(O)₂—(C₁-C₄ alkyl), C₁-C₄ alkoxy, —NH(C₁-C₄ alkyl), —OH, —CN, and —NH₂.

In some embodiments, ring B is selected from phenyl, pyrazolyl, oxazolyl, isoxazolyl, thiazolyl, pyridinyl, pyrimidinyl, pyridazinyl, and pyrazinyl, wherein ring B is optionally substituted with up to two substituents independently selected from halo, —C₁-C₄ alkyl, —C₂-C₄ alkynyl, —C₁-C₄ haloalkyl, —C₁-C₄ hydroxyalkyl, C₃-C₆ cycloalkyl, —(C₀-C₂ alkylene)-O—C₁-C₄ alkyl, —O—(C₁-C₄ alkylene)-C₃-C₆ cycloalkyl, —NH—S(O)₂—(C₁-C₄ alkyl), —S(O)₂NH(C₁-C₄ alkyl), —S(O)₂—NH—(C₃-C₆ cycloalkyl), —S(O)₂-(saturated heterocyclyl), —CN, —S(O)₂—(C₁-C₄ alkyl), —NH(C₁-C₄ alkyl), —N(C₁-C₄ alkyl)₂, —OH, C(O)—O—(C₁-C₄ alkyl), saturated heterocyclyl, and —NH₂.

In another embodiment, the compound is a compound having Structural Formula II:

or a pharmaceutically acceptable salt thereof, wherein:

Ring A′ is selected from phenyl and pyridin-2-yl, wherein ring A′ is optionally substituted with one or two substituents independently selected from chloro, fluoro, —CF₃, —CHF₂, —CH₃, —CH₂CH₃, —CF₂CH₃, —OH, —OCH₃, —OCH₂CH₃, —NH₂, —NH(CH₃), and —N(CH₃)₂;

Ring B′ is selected from pyridin-3-yl, pyridin-4-yl, isoxazoly-4-yl, isoxazol-3-yl, thiazol-5-yl, pyrimidin-5-yl and pyrazol-4-yl, wherein ring B′ is optionally substituted with one to two substituents independently selected from halo; —CN; —OH; C₁-C₄ alkyl optionally substituted with halo, CN or —OH; —S(O)₂—C₁-C₄ alkyl; —S(O)—C₁-C₄ alkyl; —S(O)₂—NH—C₁-C₄ alkyl; —S(O)₂—N(C₁-C₄ alkyl)₂; —S(O)₂-azetidin-1-yl; —O—C₁-C₄ alkyl; —CH₂—O—CH₃, morpholin-4-yl, cyclopropyl, —S(O)₂—NH-cyclopropyl; —C(O)—O—CH₃; and

—C(R^(1a))(R^(2a))(R^(3a)) is selected from C₁-C₆ alkyl optionally substituted with halo or —OH; —(C₀-C₁ alkylene)-cycloalkyl, wherein the alkylene is optionally substituted with methyl and the cycloalkyl is optionally substituted with halo, —OCH₃ or methyl; saturated heterocyclyl optionally substituted with halo or methyl; —C(O)—O—C₁-C₆ alkyl; —C(O)—(C₀-C₁ alkylene)-cyclopropyl; and C(O)-benzyl.

In certain embodiments of Formula II, ring A′ is selected from 2-chlorophenyl, 2-fluorophenyl, 2-methoxyphenyl, 3-hydroxyphenyl, 6-aminopyridin-2-yl, 6-chloropyridin-2-yl, 6-trifluoromethylpyridin-2-yl, and phenyl.

In certain embodiments of Formula II, ring B′ is selected from 2-(morpholin-4-yl)pyridin-4-yl, 2-dimethylaminopyridin-4-yl, 3-(2-methyoxyethyl)phenyl, 3,5-difluorophenyl, 3-chlorophenyl, 3-cyanomethylphenyl, 3-cyanophenyl, 3-cyclopropylaminosulfonylphenyl, 3-dimethylaminosulfonylphenyl, 3-ethylsulfonylphenyl, 3-fluorophenyl, 3-methylsulfonylphenyl, 4-fluorophenyl, 5-chloropyridin-3-yl, 5-cyanopyridin-3-yl, 5-cyanopyridin-3-yl, 5-cyanopyridin-4-yl, 5-fluoropyridin-3-yl, 5-trifluoromethypyridin-3-yl, 6-chloropyridin-4-yl, 6-cyanopyridin-4-yl, 6-cyclopropylpyridin-4-yl, 6-ethoxypyridin-4-yl, 6-fluoropyridin-3-yl, 6-fluoropyridin-4-yl, 6-methylpyridin-4-yl, 6-trifluoromethylpyridin-4-yl, isoxazol-4-yl, phenyl, pyridin-4-yl, and thiazol-5-yl.

In certain embodiments of Formula II, the moiety represented by C(R^(1a))(R^(2a))(R^(3a)) is selected from 2-hydroxycyclopentyl, 3-hydroxycyclopentyl, 1-methylcyclopropyl, 2-methylcyclopropyl, 3,3-difluorocyclobutyl, bicycloheptanyl, —(CH₂)₃CH₃, —CH(CH₃)—C(CH₃)₃, —CH(CH₃)—CH₂OCH₃, —C(O)—C(CH₃)₃, —C(O)—OC(CH₃)₃, —C(O)CH₂OH, —C(O)—CH(CH₃)₂, —C(O)-1-hydroxycyclopropyl, —C(O)-2-pyrrolidinon-5-yl, —C(O)-2-pyrrolyl, —C(O)CH₂OCH(CH₃)₂, —C(O)-cyclopropyl, —C(O)—CH₂-cyclopropyl, —C(O)—OC(CH₃)₃, —C(O)CH(CH₃)OH, —C(O)-1H-pyrazol-5-yl, —C(O)NHCH₂CH₃, —CH₂CH(CH₃)OCH₃, —CH₂CH₂CH₂OCH₃, —C(O)—OCH₂CH(CH₃)₂, —CH₂CH₂—OCH₃, —C(O)—OCH₂CH₃, —C(O)—CH₂CH₃, —CH(CH₃)—CH(CH₃)₂, —CH₂CH(CH₃)OH, —CH(CH₃)CH₂CH₃, —CH(CH₃)—CH₂CH₃, —CH(CH₃)CH₂OH, —CH₂C(CH₃)₃, —CH(CH₂OH)CH(CH₃)CH₃, —CH(CH₃)C(CH₃)₃, —CH₂C(CH₃)₂CH₂OH, —CH₂CH₂OH, —CH₂CH(CH₃)OH, —CH(CH₃)CH₂OCH₃, —CH₂—CH(CH₃)CH₂OH, —CH₂C(CH₃)₂OCH₃, —CH(C(CH₃)₃)CH₂OH, —CH₂C(CH₃)₂—OH, CH₂C(CH₃)₃, —CH₂CF₃, —CH₂CH(CH₃)₂, —CH₂CH(CH₃)₂, —CH₂CH₂CF₃, —CH₂CH₂OCH₂CH₃, —CH₂CH(CH₃)—CH₂CH₃, —CH₂CH₂CH(CH₃)₂, —CHC(CH₃)₃CH₂OH, —CH(CH₂CH₃)CH₂OH, —CH₂C(CH₃)₂OH, —CH₂-oxetan-2-yl, —CH₂-oxetan-3-yl, —CH₂-cyclopropyl, —CH₂-cyclobutyl, —CH(CH₃)-cyclopropyl, —C(O)-1-methylcyclopropyl, —C(O)-tetrahydrofuran-2-yl, —CH₂-tetrahydrofuran-2-yl, —C(O)-tetrahydrofuran-3-yl, —CH₂-morpholin-2-yl, —CH₂-1-methyltetrahydrofuran-2-yl, cyclobutyl, 3-methoxycyclobutyl, 3-cyclobutanone, cyclohexyl, 4-hydroxycyclohexyl, cyclopentyl, 3-hydroxycyclopentyl, 2-hydroxycyclopentyl, cyclopropyl, ethyl, isopropyl, isobutyl, n-propyl, n-butyl, oxetan-3-yl, oxobicyclohexanyl, tertrahydropyran-4-yl, 3-oxetanyl, 2-oxetanyl, tetrahydropyran-3-yl, 4,4-difluorocyclohexyl, 4-hydroxycyclohexyl, 3-hydroxycyclohexyl, 2-hydroxycyclohexyl, 3-tetrahydrofuranyl, 1-cyanocyclobutyl, 1-cyanocyclopropyl, 4-methoxycyclobutyl, 3-methyl-oxetan-3-yl, bicyclo[2.2.1]heptanyl, 3-oxabicyclo[3.1.0]hexanyl and 3-cyclohex-2-enonyl.

In certain embodiments of Formula II, the moiety represented by C(R^(1a))(R^(2a))(R^(3a)) is selected from 2-hydroxycyclopentyl, 2-methylcyclopropyl, 3,3-difluorocyclobutyl, bicycloheptanyl, —(CH₂)₃CH₃, —CH(CH₃)—C(CH₃)₃, —CH(CH₃)—CH₂OCH₃, —C(O)—C(CH₃)₃, —C(O)—CH(CH₃)₂, —C(O)-cyclopropyl, —C(O)—OC(CH₃)₃, —C(O)—OCH₂CH(CH₃)₂, —C(O)—OCH₂CH₃, —CH(CH₃)—CH(CH₃)₂, —CH(CH₃)—CH₂CH₃, —CH₂C(CH₃)₂CH₂OH, CH₂C(CH₃)₃, —CH₂CF₃, —CH₂CH(CH₃)₂, —CH₂CH(CH₃)—CH₂CH₃, —CH₂CH₂CH(CH₃)₂, —CH₂-cyclopropyl, cyclobutyl, cyclohexyl, cyclopentyl, cyclopropyl, isopropyl, oxetan-3-yl, oxobicyclohexanyl, tertrahydropyran-4-yl, and tetrahydropyran-3-yl.

In another embodiment, the compound is a compound having Structural Formula II:

or a pharmaceutically acceptable salt thereof, wherein:

Ring A′ is selected from phenyl, pyrimidin-2-yl, pyrimidin-4-yl, pyrimidin-5-yl, oxazol-4-yl, isoxazol-3-yl, thiazol-2-yl, pyridin-3-yl and pyridin-2-yl, wherein ring A′ is optionally substituted with one or two substituents independently selected from 1-propenyl, -cyclopropyl-OH, chloro, fluoro, —CF₃, —CHF₂, —CH₃, —CH₂CH₃, —CF₂CH₃, —S(O)CH₃, —S(O)₂CH₃, —CH₂OH, —CH(OH)CH₃, —CH(OH)CF₃, —OH, —OCH₃, —OCF₃, —OCH₂CH₃, —C(O)—NH₂, —CH₂NH₂, —NH₂, —NH(CH₃), —CN and —N(CH₃)₂;

Ring B′ is selected from phenyl, pyridin-3-yl, pyridin-4-yl, pyridazin-4-yl, isoxazol-4-yl, isoxazol-3-yl, thiazol-5-yl, pyrimidin-5-yl and pyrazol-4-yl, wherein ring B′ is optionally substituted with one to two substituents independently selected from halo; —CN; —OH; C₁-C₄ alkyl optionally substituted with halo, CN or —OH; —S(O)₂—C₁-C₄ alkyl; —S(O)—C₁-C₄ alkyl; —S(O)₂—NH—C₁-C₄ alkyl; —S(O)₂—NH—CH₂—CF₃; —S(O)₂—N(C₁-C₄ alkyl)₂; —S(O)₂-azetidin-1-yl; —O—C₁-C₄ alkyl; —CH₂—O—CH₃, morpholin-4-yl, cyclopropyl, cyclopropyl-C₁-C₄ alkyl, cyclopropyl-C₁-C₄ alkoxy, cyclopropyl-CN, —S(O)₂—NH-cyclopropyl; —S(O)₂—NH—CH₂-cyclopropyl; —C(O)—C₁-C₄ alkyl, —C(O)—O—CH₃; and

—C(R^(1a))(R^(2a))(R^(3a)) is selected from C₁-C₆ alkyl optionally substituted with halo, —OCH₃, —P(O)₃ ²⁻ or —OH; —(C₀-C₁ alkylene)-cycloalkyl, wherein the alkylene is optionally substituted with methyl and the cycloalkyl is optionally substituted with —OH, —CH₂OH, halo, —OCH₃ or methyl; saturated or partially saturated —(C₀-C₁ alkylene)-heterocyclyl wherein the heterocyclyl is optionally substituted with halo, —S(O)₂—CH₂—C(O)—C₁-C₆ alkyl, —S(O)₂—C₁-C₆ alkyl, —C(O)—O—C₁-C₆ alkyl, —C(O)—N(CH₃)₂ or methyl; —C(O)—O—C₁-C₆ alkyl; —C(O)—(C₀-C₁ alkylene)-cyclopropyl; and C(O)-benzyl.

In certain embodiments of Formula II, ring A′ is selected from 2-chlorophenyl, 2-fluorophenyl, 2-methoxyphenyl, 3-hydroxyphenyl, 3-amidophenyl, 3-methylsulfinylphenyl, 3-methylsulfonylphenyl, 3-(1-methanol)phenyl, 3-methanaminephenyl, 3-methoxy-2-fluorophenyl, 5-methoxy-2-fluorophenyl, 3-hydroxy-2-fluorophenyl, 5-hydroxy-2-fluorophenyl, 5-hydroxy-3-fluorophenyl, 3-methanolphenyl, 3,5-dihydroxyphenyl, 3-trifluoromethyl-5-chlorophenyl, 3-(1-hydoxy-2,2,2-trifluoroethyl)phenyl, 3-(1-hydoxyethyl)phenyl, 3-(1-hydoxycyclopropyl)phenyl, 3-hydroxymethyl-5-phenol, pyridin-2-yl, 3-fluoropyridin-2-yl, 3-cyanopyridin-2-yl, 3,6-difluoropyridin-2-yl, 3-fluoro-6-methoxypyridin-2-yl, 3-fluoro-6-hydroxypyridin-2-yl, 3-fluoro-6-aminopyridin-2-yl, 4-fluoro-6-aminopyridin-2-yl, 6-propen-1-ylpyridin-2-yl, 6-prop-1-ylpyridin-2-yl, 6-methylaminopyridin-2-yl, 3-fluoro-6-trifluoromethylpyridin-2-yl, 4-chloro-6-aminopyridin-2-yl, 4-fluoro-6-aminopyridin-2-yl, 4-chloro-6-methoxypyridin-2-yl, 6-aminopyridin-3-yl, 2-methoxypyridin-3-yl, 6-aminopyridin-2-yl, 6-chloropyridin-2-yl, 6-trifluoromethylpyridin-2-yl, 6-difluoromethylpyridin-2-yl, 4-(CH₂OH)-6-trifluoromethyl-pyridin-2-yl, 4-(CH₂OH)-6-chloro-pyridin-2-yl, 6-(1,1-difluoroethyl)-4-fluoropyridin-2-yl, 4-trifluoromethylpyrimidin-2-yl, 4-aminopyrimidin-2-yl, 6-trifluoromethyl-4-aminopyrimidin-2-yl, 4-trifluoromethyl-6-aminopyrimidin-2-yl, 4-aminopyrimidin-2-yl, 2-aminopyrimidin-4-yl, 2-aminopyrimidin-5-yl, 4,6-dichloropyridin-2-yl, 3,5-dichlorophenyl, 2,6-difluorophenyl, 2-methyloxazol-4-yl, 3-methylisoxazol-5-yl, 4-trifluoromethyl-thiazol-2-yl, 4-methylthiazol-2-yl and phenyl.

In certain embodiments of Formula II, ring B′ is selected from 2-(morpholin-4-yl)pyridin-4-yl, 2-dimethylaminopyridin-4-yl, 3-(2-methyoxyethyl)phenyl, 3,5-difluorophenyl, 3-chlorophenyl, 3-cyanomethylphenyl, 3-cyanophenyl, 3-(cyclopropylmethyl)phenyl, 3-cyclopropylaminosulfonylphenyl, 3-dimethylaminosulfonylphenyl, 3-ethylsulfonylphenyl, 3-fluorophenyl, 3-methylsulfonylphenyl, 4-fluorophenyl, 3-(1-hydroxyisopropyl)phenyl, 3-methylsulfonyl-5-chlorophenyl, 3-methylsulfonyl-5-fluorophenyl, 3-(N-2,2,2,-trifluoroethylaminosulfonyl)phenyl, 3-(N-cyclopropyl)benzamide, 5-chloropyridin-3-yl, 5-cyanopyridin-3-yl, 5-cyanopyridin-3-yl, 5-cyanopyridin-4-yl, 5-fluoropyridin-3-yl, 2-(1-hydroxyisopropyl)pyridin-4-yl, 5-trifluoromethypyridin-3-yl, 2-trifluoromethylpyridin-4-yl, 2-difluoromethylpyridin-4-yl, 2-chloropyridin-4-yl, 6-chloropyridin-4-yl, 6-cyanopyridin-4-yl, 2-cyanopyridin-4-yl, 6-cyclopropylpyridin-4-yl, 6-ethoxypyridin-4-yl, 6-fluoropyridin-3-yl, 2-fluoropyridin-4-yl, 5,6-difluoropyridin-3-yl, 6-fluoropyridin-4-yl, 6-methylpyridin-4-yl, 2-difluoromethylpyridin-4-yl, 6-trifluoromethylpyridin-4-yl, 2-(1-methoxycyclopropyl)pyridin-4-yl, 2-cyclopropylpyridin-4-yl, 2-(propan-1-one)pyridin-4-yl, 2-(1-methylcyclopropyl)pyridin-4-yl, 2-(1-cyanocyclopropyl)pyridin-4-yl, 2-(1-cyanoisopropyl)pyridin-4-yl, isoxazol-4-yl, phenyl, pyridin-4-yl, picolinat-2-yl, pyrimidin-5-yl, 1-propylpyrazol-4-yl, 6-methyl-pyridazin-4-yl, and thiazol-5-yl.

In certain embodiments of Formula II, the moiety represented by C(R^(1a))(R^(2a))(R^(3a)) is selected from 2-hydroxycyclopentyl, 3-hydroxycyclopentyl, 1-methylcyclopropyl, 2-methylcyclopropyl, 3,3-difluorocyclobutyl, bicycloheptanyl, —(CH₂)₃CH₃, —CH(CH₃)—C(CH₃)₃, —CH(CH₃)—CH₂OCH₃, —C(O)—C(CH₃)₃, —C(O)—OC(CH₃)₃, —C(O)CH₂OH, —C(O)—CH(CH₃)₂, —C(O)-1-hydroxycyclopropyl, —C(O)-2-pyrrolidinon-5-yl, —C(O)-2-pyrrolyl, —C(O)CH₂OCH(CH₃)₂, —C(O)-cyclopropyl, —C(O)—CH₂-cyclopropyl, —C(O)—OC(CH₃)₃, —C(O)CH(CH₃)OH, —C(O)-1H-pyrazol-5-yl, —C(O)NHCH₂CH₃, —CH₂CH(CH₃)OCH₃, —CH₂CH₂CH₂OCH₃, —C(O)—OCH₂CH(CH₃)₂, —CH₂CH₂—OCH₃, —C(O)—OCH₂CH₃, —C(O)—CH₂CH₃, —CH(CH₃)—CH(CH₃)₂, —CH₂CH(CH₃)OH, —CH(CH₃)CH₂CH₃, —CH₂C(CH₃)₂OH, —CH(CH₃)—CH₂CH₃, —CH(CH₃)CH₂OH, —CH₂C(CH₃)₃, —CH(CH₂OH)CH(CH₃)CH₃, —CH(CH₃)C(CH₃)₃, —CH₂C(CH₃)₂—CH₂OH, —CH₂CH₂OH, —CH₂CH(CH₃)OH, —CH(CH₃)CH₂OCH₃, —CH₂—CH(CH₃)CH₂OH, —CH₂C(CH₃)₂OCH₃, —C(CH₃)₂CH₂OH, —CH₂CH(CH₃)OCH₃, —CH(CH₃)CH(CH₃)OH, —CH₂CH(CH₃)CH₂OH, —CH(C(CH₃)₃)CH₂OH, CH(CH₃)C(CH₃)₂OH, —CH₂C(CH₃)₂—OH, CH₂C(CH₃)₃, —CH₂CF₃, —CH₂CH(CH₃)₂, —CH₂CH(CH₃)₂, —CH₂CH₂CF₃, —CH₂CH₂OCH₂CH₃, —CH₂CH(CH₃)—CH₂CH₃, —CH₂CH₂CH(CH₃)₂, —CH(C(CH₃)₃)CH₂OH, —CH(CH₂CH₃)CH₂OH, —CH₂C(CH₃)₂OH, —CH₂-oxetan-2-yl, —CH₂-oxetan-3-yl, —CH₂-1-methyl-oxetan-3-yl, —CH₂-cyclopropyl, —CH₂-1-hydroxycyclopropyl, —CH₂-cyclobutyl, —CH(CH₃)-cyclopropyl, —C(O)-1-methylcyclopropyl, —C(O)-tetrahydrofuran-2-yl, —CH₂-tetrahydrofuran-2-yl, —CH₂-tetrahydrofuran-3-yl, —C(O)-tetrahydrofuran-3-yl, —CH₂-morpholin-2-yl, —CH₂-1-methyltetrahydrofuran-2-yl, cyclobutyl, 3-methoxycyclobutyl, 3-cyclobutanone, cyclohexyl, 4-hydroxycyclohexyl, cyclopentyl, 3-hydroxycyclopentyl, 2-hydroxycyclopentyl, cyclopropyl, ethyl, isopropyl, isobutyl, n-propyl, n-butyl, t-butyl, oxetan-3-yl, oxobicyclohexanyl, tetrahydropyran-4-yl, 3-oxetanyl, 2-oxetanyl, tetrahydropyran-3-yl, 4,4-difluorocyclohexyl, 4-hydroxycyclohexyl, 3-hydroxycyclohexyl, 2-hydroxycyclohexyl, 3-tetrahydrofuranyl, 1-cyanocyclobutyl, 1-cyanocyclopropyl, 1-methylcyclopropyl, 1-(hydroxymethyl)cyclopropyl, 2-methylcyclopropyl, 2-hydroxycyclopropyl, 4-methoxycyclobutyl, 3-methyl-oxetan-3-yl, bicyclo[2.2.1]heptanyl, 3-oxabicyclo[3.1.0]hex-6-yl, 1-(t-butylcarboxylate)piperidin-4-yl, piperidin-4-yl, 1-(methylcarboxylate)piperidin-4-yl, 1-(1-ethanone)piperidin-4-yl, 1-(methylsulfonyl)piperidin-4-yl, 1-methylpyrazol-4-yl, 1-methylpyrazol-5-yl, thiazol-5-yl, 7-oxa-bicyclo[2.2.1]hept-2-yl, tetrahydropyran-4-yl, and 3-cyclohex-2-enonyl.

In certain embodiments of Formula II, the moiety represented by C(R^(1a))(R^(2a))(R^(3a)) is selected from 2-hydroxycyclopentyl, 2-methylcyclopropyl, 3,3-difluorocyclobutyl, bicycloheptanyl, —(CH₂)₃CH₃, —CH(CH₃)—C(CH₃)₃, —CH(CH₃)—CH₂OCH₃, —C(O)—C(CH₃)₃, —C(O)—CH(CH₃)₂, —C(O)-cyclopropyl, —C(O)—OC(CH₃)₃, —C(O)—OCH₂CH(CH₃)₂, —C(O)—OCH₂CH₃, —CH(CH₃)—CH(CH₃)₂, —CH(CH₃)—CH₂CH₃, —CH₂C(CH₃)₂—CH₂OH, —CH₂C(OH)(CH₃)₃, CH₂C(CH₃)₃, —CH₂CF₃, —CH₂CH(CH₃)₂, —CH₂CH(CH₃)—CH₂CH₃, —CH₂CH₂CH(CH₃)₂, —CH₂-cyclopropyl, cyclobutyl, cyclohexyl, cyclopentyl, cyclopropyl, isopropyl, t-butyl, oxetan-3-yl, oxobicyclohexanyl, tertrahydropyran-4-yl, and tetrahydropyran-3-yl.

In certain embodiments of Formula II, the moiety represented by C(R^(1a))(R^(2a))(R^(3a)) is selected from 2-methylcyclopropyl, —(CH₂)₃CH₃, —CH(CH₃)—C(CH₃)₃, —CH(CH₃)—CH₂OCH₃, —CH(CH₃)—CH(CH₃)₂, —CH(CH₃)—CH₂CH₃, —CH₂C(CH₃)₂—CH₂OH, —CH₂C(OH)(CH₃)₃, CH₂C(CH₃)₃, —CH₂CF₃, —CH₂CH(CH₃)₂, —CH(CH₃)₂, —CH₂CH(CH₃)—CH₂CH₃, —CH₂CH₂CH(CH₃)₂, —CH₂-cyclopropyl, isopropyl, and t-butyl.

Further embodiments provided herein include combinations of one or more of the particular embodiments set forth above.

In another embodiment, the compound is selected from any one of the compounds set forth in Table 1, below.

TABLE 1 Representative Compounds Cmpd No Structure 100

103

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

126

128

129

130

132

133

135

137

139

140

141

143

145

146

147

148

149

150

151

154

155

156

158

159

160

162

165

167

168

169

170

172

173

174

175

176

177

178

179

181

182

183

184

185

186

187

188

189

190

191

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

326

327

328

329

330

331

332

334

335

336

337

340

341

342

343

344

345

346

347

348

350

351

352

353

354

355

356

357

358

359

360

361

362

363

364

365

366

367

368

369

370

371

372

374

376

377

378

379

380

381

382

383

384

385

386

387

388

389

390

391

392

393

394

395

396

397

398

399

400

401

402

403

404

405

406

407

408

409

410

411

412

413

414

415

416

450

451

452

454

455

456

458

459

460

461

462

463

464

465

466

467

468

469

470

471

472

473

474

475

476

477

478

479

480

481

482

483

484

485

486

487

488

489

490

491

492

493

494

495

496

497

498

499

500

501

502

503

504

505

506

507

508

509

510

511

512

513

514

515

516

517

518

519

521

522

523

524

526

527

528

529

530

531

532

533

534

535

536

537

538

540

541

542

543

544

545

546

547

548

549

550

551

552

554

555

556

557

558

559

560

561

562

563

564

565

566

567

568

569

570

571

572

573

574

576

577

578

580

581

582

583

584

585

586

587

588

589

590

591

592

593

594

595

596

597

598

599

600

601

602

603

604

605

606

607

608

609

610

611

612

613

614

615

616

617

618

619

621

622

623

624

625

626

627

628

629

630

631

632

633

634

635

636

637

638

639

640

641

642

644

645

646

647

648

649

650

651

652

653

654

655

657

658

660

662

663

664

665

667

669

670

671

672

673

674

675

676

677

678

679

680

681

682

683

684

685

686

687

689

690

691

692

693

694

695

696

697

698

699

Included herein are also methods for making compounds of Formula I or a compound of any one of the embodiments described herein comprising reacting

with

In some embodiments, the preceding methods comprise step (1) reacting

with

to give

and step (2) reacting

with

In other embodiments, the preceding methods comprise step (1) reacting

with

to give

step (2) reacting

with

to give

and step (3) reacting

with

Also included are methods for making compounds of Formula I or a compound of any one of the embodiments described herein comprising reacting

with

In some embodiments, the preceding methods comprise step (1) reacting

with

to give

and step (2) reacting

with

In other embodiments, the preceding methods wherein R¹ and R³ are taken together with the carbon atom to form C(═O), comprise step (1) reacting

with NH₃ to give

and step (2) reacting

with R²C(O)Cl or R²C(O)OMe.

Also included are methods for making compounds of Formula I or a compound of any one of the embodiments described herein comprising reacting

with

In some embodiments, the preceding methods comprise step (1) reacting

with

to give

and step (2) reacting

with

Also included are methods for making compounds of Formula I or a compound of any one of the embodiments described herein comprising reacting

with

In some embodiments, the preceding methods comprise step (1) reacting

with NH₃ to give

and step (2) reacting

with

Also included are methods for making compounds of Formula I or a compound of any one of the embodiments described herein comprising reacting

with

In some embodiments, the preceding methods comprise step (1) reacting

with

to give

and step (2) reacting

with

In other embodiments, the preceding methods comprise step (1) converting

to

step (2) reacting

with

to give

and step (3) reacting

with

The compounds of one aspect of this invention may contain one or more asymmetric centers and thus occur as racemates, racemic mixtures, scalemic mixtures, and diastereomeric mixtures, as well as single enantiomers or individual stereoisomers that are substantially free from another possible enantiomer or stereoisomer. The term “substantially free of other stereoisomers” as used herein means a preparation enriched in a compound having a selected stereochemistry at one or more selected stereocenters by at least about 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99%. The term “enriched” means that at least the designated percentage of a preparation is the compound having a selected stereochemistry at one or more selected stereocenters. Methods of obtaining or synthesizing an individual enantiomer or stereoisomer for a given compound are known in the art and may be applied as practicable to final compounds or to starting material or intermediates.

In certain embodiments, the compound of Formula I or II is enriched for a structure or structures having a selected stereochemistry at one or more carbon atoms. For example, the compound is enriched in the specific stereoisomer by at least about 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99%.

The compounds of Formula I or II may also comprise one or more isotopic substitutions. For example, H may be in any isotopic form, including ¹H, ²H (D or deuterium), and ³H (T or tritium); C may be in any isotopic form, including ¹²C, ¹³C, and ¹⁴C; O may be in any isotopic form, including ¹⁶O and ¹⁸O; and the like. For example, the compound is enriched in a specific isotopic form of H, C and/or O by at least about 60%, 65%, 70%, 75%, 80%, 85%, 90%, 95%, 96%, 97%, 98%, or 99%.

Unless otherwise indicated when a disclosed compound is named or depicted by a structure without specifying the stereochemistry and has one or more chiral centers, it is understood to represent all possible stereoisomers of the compound.

The compounds of one aspect of this invention may also be represented in multiple tautomeric forms, in such instances, one aspect of the invention expressly includes all tautomeric forms of the compounds described herein, even though only a single tautomeric form may be represented (e.g., alkylation of a ring system may result in alkylation at multiple sites, one aspect of the invention expressly includes all such reaction products; and keto-enol tautomers). All such isomeric forms of such compounds are expressly included herein.

It may be convenient or desirable to prepare, purify, and/or handle a corresponding salt of the active compound, for example, a pharmaceutically-acceptable salt. Examples of pharmaceutically acceptable salts are discussed in Berge et al., 1977, “Pharmaceutically Acceptable Salts.” J. Pharm. Sci. Vol. 66, pp. 1-19.

For example, if the compound is anionic, or has a functional group which may be anionic (e.g., —COOH may be —COO⁻), then a salt may be formed with a suitable cation. Examples of suitable inorganic cations include, but are not limited to, alkali metal ions such as Na⁺ and K⁺, alkaline earth cations such as Ca²⁺ and Mg²⁺, and other cations such as Al³⁺. Examples of suitable organic cations include, but are not limited to, ammonium ion (i.e., NH₄ ⁺) and substituted ammonium ions (e.g., NH₃R⁺, NH₂R²⁺, NHR³⁺, NR⁴⁺). Examples of some suitable substituted ammonium ions are those derived from: ethylamine, diethylamine, dicyclohexylamine, triethylamine, butylamine, ethylenediamine, ethanolamine, diethanolamine, piperazine, benzylamine, phenylbenzylamine, choline, meglumine, and tromethamine, as well as amino acids, such as lysine and arginine. An example of a common quaternary ammonium ion is N(CH₃)₄ ⁺.

If the compound is cationic, or has a functional group that may be cationic (e.g., —NH₂ may be —NH₃ ⁺), then a salt may be formed with a suitable anion. Examples of suitable inorganic anions include, but are not limited to, those derived from the following inorganic acids: hydrochloric, hydrobromic, hydroiodic, sulfuric, sulfurous, nitric, nitrous, phosphoric, and phosphorous.

Examples of suitable organic anions include, but are not limited to, those derived from the following organic acids: 2-acetyoxybenzoic, acetic, ascorbic, aspartic, benzoic, camphorsulfonic, cinnamic, citric, edetic, ethanedisulfonic, ethanesulfonic, fumaric, glucoheptonic, gluconic, glutamic, glycolic, hydroxymaleic, hydroxynaphthalene carboxylic, isethionic, lactic, lactobionic, lauric, maleic, malic, methanesulfonic, mucic, oleic, oxalic, palmitic, pamoic, pantothenic, phenylacetic, phenylsulfonic, propionic, pyruvic, salicylic, stearic, succinic, sulfanilic, tartaric, toluenesulfonic, and valeric. Mesylates of each compound in Table 1 are explicitly included herein. Examples of suitable polymeric organic anions include, but are not limited to, those derived from the following polymeric acids: tannic acid, carboxymethyl cellulose.

The compounds provided herein therefore include the compounds themselves, as well as their salts, hydrates and their prodrugs, if applicable. The compounds provided herein may be modified and converted to prodrugs by appending appropriate functionalities to enhance selected biological properties, e.g., targeting to a particular tissue. Such modifications (i.e., prodrugs) are known in the art and include those which increase biological penetration into a given biological compartment (e.g., blood, lymphatic system, central nervous system), increase oral availability, increase solubility to allow administration by injection, alter metabolism and alter rate of excretion. Examples of prodrugs include esters (e.g., phosphates, amino acid (e.g., valine) esters), carbamates and other pharmaceutically acceptable derivatives, which, upon administration to a subject, are capable of providing active compounds. Calcium and sodium phosphates of each compound in Table 1, if applicable, are explicitly included herein. Amino acid (e.g., valine) esters of each compound in Table 1, if applicable, are explicitly included herein.

Compositions and Routes of Administration

The compounds utilized in the methods described herein may be formulated together with a pharmaceutically acceptable carrier or adjuvant into pharmaceutically acceptable compositions prior to be administered to a subject. In another embodiment, such pharmaceutically acceptable compositions further comprise additional therapeutic agents in amounts effective for achieving a modulation of disease or disease symptoms, including those described herein.

The term “pharmaceutically acceptable carrier or adjuvant” refers to a carrier or adjuvant that may be administered to a subject, together with a compound of one aspect of this invention, and which does not destroy the pharmacological activity thereof and is nontoxic when administered in doses sufficient to deliver a therapeutic amount of the compound.

Pharmaceutically acceptable carriers, adjuvants and vehicles that may be used in the pharmaceutical compositions of one aspect of this invention include, but are not limited to, ion exchangers, alumina, aluminum stearate, lecithin, self-emulsifying drug delivery systems (SEDDS) such as d-α-tocopherol polyethyleneglycol 1000 succinate, surfactants used in pharmaceutical dosage forms such as Tweens or other similar polymeric delivery matrices, serum proteins, such as human serum albumin, buffer substances such as phosphates, glycine, sorbic acid, potassium sorbate, partial glyceride mixtures of saturated vegetable fatty acids, water, salts or electrolytes, such as protamine sulfate, disodium hydrogen phosphate, potassium hydrogen phosphate, sodium chloride, zinc salts, colloidal silica, magnesium trisilicate, polyvinyl pyrrolidone, cellulose-based substances, polyethylene glycol, sodium carboxymethylcellulose, polyacrylates, waxes, polyethylene-polyoxypropylene-block polymers, polyethylene glycol and wool fat. Cyclodextrins such as α-, β-, and γ-cyclodextrin, or chemically modified derivatives such as hydroxyalkylcyclodextrins, including 2- and 3-hydroxypropyl-β-cyclodextrins, or other solubilized derivatives may also be advantageously used to enhance delivery of compounds of the formulae described herein.

The pharmaceutical compositions of one aspect of this invention may be administered orally, parenterally, by inhalation spray, topically, rectally, nasally, buccally, vaginally or via an implanted reservoir, preferably by oral administration or administration by injection. The pharmaceutical compositions of one aspect of this invention may contain any conventional non-toxic pharmaceutically-acceptable carriers, adjuvants or vehicles. In some cases, the pH of the formulation may be adjusted with pharmaceutically acceptable acids, bases or buffers to enhance the stability of the formulated compound or its delivery form. The term parenteral as used herein includes subcutaneous, intracutaneous, intravenous, intramuscular, intraarticular, intraarterial, intrasynovial, intrasternal, intrathecal, intralesional and intracranial injection or infusion techniques.

The pharmaceutical compositions may be in the form of a sterile injectable preparation, for example, as a sterile injectable aqueous or oleaginous suspension. This suspension may be formulated according to techniques known in the art using suitable dispersing or wetting agents (such as, for example, Tween 80) and suspending agents. The sterile injectable preparation may also be a sterile injectable solution or suspension in a non-toxic parenterally acceptable diluent or solvent, for example, as a solution in 1,3-butanediol. Among the acceptable vehicles and solvents that may be employed are mannitol, water, Ringer's solution and isotonic sodium chloride solution. In addition, sterile, fixed oils are conventionally employed as a solvent or suspending medium. For this purpose, any bland fixed oil may be employed including synthetic mono- or diglycerides. Fatty acids, such as oleic acid and its glyceride derivatives are useful in the preparation of injectables, as are natural pharmaceutically-acceptable oils, such as olive oil or castor oil, especially in their polyoxyethylated versions. These oil solutions or suspensions may also contain a long-chain alcohol diluent or dispersant, or carboxymethyl cellulose or similar dispersing agents which are commonly used in the formulation of pharmaceutically acceptable dosage forms such as emulsions and or suspensions. Other commonly used surfactants such as Tweens or Spans and/or other similar emulsifying agents or bioavailability enhancers which are commonly used in the manufacture of pharmaceutically acceptable solid, liquid, or other dosage forms may also be used for the purposes of formulation.

The pharmaceutical compositions of one aspect of this invention may be orally administered in any orally acceptable dosage form including, but not limited to, capsules, tablets, emulsions and aqueous suspensions, dispersions and solutions. In the case of tablets for oral use, carriers which are commonly used include lactose and corn starch. Lubricating agents, such as magnesium stearate, are also typically added. For oral administration in a capsule form, useful diluents include lactose and dried corn starch. When aqueous suspensions and/or emulsions are administered orally, the active ingredient may be suspended or dissolved in an oily phase is combined with emulsifying and/or suspending agents. If desired, certain sweetening and/or flavoring and/or coloring agents may be added.

The pharmaceutical compositions of one aspect of this invention may also be administered in the form of suppositories for rectal administration. These compositions can be prepared by mixing a compound of one aspect of this invention with a suitable non-irritating excipient which is solid at room temperature but liquid at the rectal temperature and therefore will melt in the rectum to release the active components. Such materials include, but are not limited to, cocoa butter, beeswax and polyethylene glycols.

Topical administration of the pharmaceutical compositions of one aspect of this invention is useful when the desired treatment involves areas or organs readily accessible by topical application. For application topically to the skin, the pharmaceutical composition should be formulated with a suitable ointment containing the active components suspended or dissolved in a carrier. Carriers for topical administration of the compounds of one aspect of this invention include, but are not limited to, mineral oil, liquid petroleum, white petroleum, propylene glycol, polyoxyethylene polyoxypropylene compound, emulsifying wax and water. Alternatively, the pharmaceutical composition can be formulated with a suitable lotion or cream containing the active compound suspended or dissolved in a carrier with suitable emulsifying agents. Suitable carriers include, but are not limited to, mineral oil, sorbitan monostearate, polysorbate 60, cetyl esters wax, cetearyl alcohol, 2-octyldodecanol, benzyl alcohol and water. The pharmaceutical compositions of one aspect of this invention may also be topically applied to the lower intestinal tract by rectal suppository formulation or in a suitable enema formulation. Topically-transdermal patches are also included in one aspect of this invention.

The pharmaceutical compositions of one aspect of this invention may be administered by nasal aerosol or inhalation. Such compositions are prepared according to techniques well-known in the art of pharmaceutical formulation and may be prepared as solutions in saline, employing benzyl alcohol or other suitable preservatives, absorption promoters to enhance bioavailability, fluorocarbons, and/or other solubilizing or dispersing agents known in the art. When the compositions of one aspect of this invention comprise a combination of a compound of the formulae described herein and one or more additional therapeutic or prophylactic agents, both the compound and the additional agent should be present at dosage levels of between about 1 to 100%, and more preferably between about 5 to 95% of the dosage normally administered in a monotherapy regimen. The additional agents may be administered separately, as part of a multiple dose regimen, from the compounds of one aspect of this invention. Alternatively, those agents may be part of a single dosage form, mixed together with the compounds of one aspect of this invention in a single composition.

The compounds described herein can, for example, be administered by injection, intravenously, intraarterially, subdermally, intraperitoneally, intramuscularly, or subcutaneously; or orally, buccally, nasally, transmucosally, topically, in an ophthalmic preparation, or by inhalation, with a dosage ranging from about 0.5 to about 100 mg/kg of body weight, alternatively dosages between 1 mg and 1000 mg/dose, every 4 to 120 hours, or according to the requirements of the particular drug. The methods herein contemplate administration of an effective amount of compound or compound composition to achieve the desired or stated effect. Typically, the pharmaceutical compositions of one aspect of this invention will be administered from about 1 to about 6 times per day or alternatively, as a continuous infusion. Such administration can be used as a chronic or acute therapy. The amount of active ingredient that may be combined with the carrier materials to produce a single dosage form will vary depending upon the host treated and the particular mode of administration. A typical preparation will contain from about 5% to about 95% active compound (w/w). Alternatively, such preparations contain from about 20% to about 80% active compound.

Lower or higher doses than those recited above may be required. Specific dosage and treatment regimens for any particular subject will depend upon a variety of factors, including the activity of the specific compound employed, the age, body weight, general health status, sex, diet, time of administration, rate of excretion, drug combination, the severity and course of the disease, condition or symptoms, the subject's disposition to the disease, condition or symptoms, and the judgment of the treating physician.

Upon improvement of a subject's condition, a maintenance dose of a compound, composition or combination of one aspect of this invention may be administered, if necessary. Subsequently, the dosage or frequency of administration, or both, may be reduced, as a function of the symptoms, to a level at which the improved condition is retained when the symptoms have been alleviated to the desired level. Subjects may, however, require intermittent treatment on a long-term basis upon any recurrence of disease symptoms.

The pharmaceutical compositions described above comprising a compound of Structural Formula I or II or a compound described in any one of the embodiments herein, may further comprise another therapeutic agent useful for treating cancer.

Methods of Use

The inhibitory activities of the compounds provided herein against IDH2 mutants (e.g., IDH2R140Q and IDH2R172K) can be tested by methods described in Example 12 or analogous methods.

Provided is a method for inhibiting a mutant IDH2 activity comprising contacting a subject in need thereof with a compound of Structural Formula I or II, a compound described in any one of the embodiments herein, or a pharmaceutically acceptable salt thereof. In one embodiment, the cancer to be treated is characterized by a mutant allele of IDH2 wherein the IDH2 mutation results in a new ability of the enzyme to catalyze the NAPH-dependent reduction of α-ketoglutarate to R(−)-2-hydroxyglutarate in a subject. In one aspect of this embodiment, the mutant IDH2 has an R140X mutation. In another aspect of this embodiment, the R140X mutation is a R140Q mutation. In another aspect of this embodiment, the R140X mutation is a R140W mutation. In another aspect of this embodiment, the R140X mutation is a R140L mutation. In another aspect of this embodiment, the mutant IDH2 has an R172X mutation. In another aspect of this embodiment, the R172X mutation is a R172K mutation. In another aspect of this embodiment, the R172X mutation is a R172G mutation.

Also provided are methods of treating a cancer characterized by the presence of a mutant allele of IDH2 comprising the step of administering to subject in need thereof (a) a compound of Structural Formula I or II, a compound described in any one of the embodiments herein, or a pharmaceutically acceptable salt thereof, or (b) a pharmaceutical composition comprising (a) and a pharmaceutically acceptable carrier.

In one embodiment, the cancer to be treated is characterized by a mutant allele of IDH2 wherein the IDH2 mutation results in a new ability of the enzyme to catalyze the NAPH-dependent reduction of α-ketoglutarate to R(−)-2-hydroxyglutarate in a patient. In one aspect of this embodiment, the mutant IDH2 has an R140X mutation. In another aspect of this embodiment, the R140X mutation is a R140Q mutation. In another aspect of this embodiment, the R140X mutation is a R140W mutation. In another aspect of this embodiment, the R140X mutation is a R140L mutation. In another aspect of this embodiment, the mutant IDH2 has an R172X mutation. In another aspect of this embodiment, the R172X mutation is a R172K mutation. In another aspect of this embodiment, the R172X mutation is a R172G mutation. A cancer can be analyzed by sequencing cell samples to determine the presence and specific nature of (e.g., the changed amino acid present at) a mutation at amino acid 140 and/or 172 of IDH2.

Without being bound by theory, applicants believe that mutant alleles of IDH2 wherein the IDH2 mutation results in a new ability of the enzyme to catalyze the NAPH-dependent reduction of α-ketoglutarate to R(−)-2-hydroxyglutarate, and in particular R140Q and/or R172K mutations of IDH2, characterize a subset of all types of cancers, without regard to their cellular nature or location in the body. Thus, the compounds and methods of one aspect of this invention are useful to treat any type of cancer that is characterized by the presence of a mutant allele of IDH2 imparting such activity and in particular an IDH2 R140Q and/or R172K mutation.

In one aspect of this embodiment, the efficacy of cancer treatment is monitored by measuring the levels of 2HG in the subject. Typically levels of 2HG are measured prior to treatment, wherein an elevated level is indicated for the use of the compound of Formula I or II or a compound described in any one of the embodiments described herein to treat the cancer. Once the elevated levels are established, the level of 2HG is determined during the course of and/or following termination of treatment to establish efficacy. In certain embodiments, the level of 2HG is only determined during the course of and/or following termination of treatment.

A reduction of 2HG levels during the course of treatment and following treatment is indicative of efficacy. Similarly, a determination that 2HG levels are not elevated during the course of or following treatment is also indicative of efficacy. Typically, the these 2HG measurements will be utilized together with other well-known determinations of efficacy of cancer treatment, such as reduction in number and size of tumors and/or other cancer-associated lesions, improvement in the general health of the subject, and alterations in other biomarkers that are associated with cancer treatment efficacy.

2HG can be detected in a sample by LC/MS. The sample is mixed 80:20 with methanol, and centrifuged at 3,000 rpm for 20 minutes at 4 degrees Celsius. The resulting supernatant can be collected and stored at −80 degrees Celsius prior to LC-MS/MS to assess 2-hydroxyglutarate levels. A variety of different liquid chromatography (LC) separation methods can be used. Each method can be coupled by negative electrospray ionization (ESI, −3.0 kV) to triple-quadrupole mass spectrometers operating in multiple reaction monitoring (MRM) mode, with MS parameters optimized on infused metabolite standard solutions. Metabolites can be separated by reversed phase chromatography using 10 mM tributyl-amine as an ion pairing agent in the aqueous mobile phase, according to a variant of a previously reported method (Luo et al. J Chromatogr A 1147, 153-64, 2007). One method allows resolution of TCA metabolites: t=0, 50% B; t=5, 95% B; t=7, 95% B; t=8, 0% B, where B refers to an organic mobile phase of 100% methanol. Another method is specific for 2-hydroxyglutarate, running a fast linear gradient from 50%-95% B (buffers as defined above) over 5 minutes. A Synergi Hydro-RP, 100 mm×2 mm, 2.1 μm particle size (Phenomonex) can be used as the column, as described above. Metabolites can be quantified by comparison of peak areas with pure metabolite standards at known concentration. Metabolite flux studies from ¹³C-glutamine can be performed as described, e.g., in Munger et al. Nat Biotechnol 26, 1179-86, 2008.

In one embodiment 2HG is directly evaluated.

In another embodiment a derivative of 2HG formed in process of performing the analytic method is evaluated. By way of example such a derivative can be a derivative formed in MS analysis. Derivatives can include a salt adduct, e.g., a Na adduct, a hydration variant, or a hydration variant which is also a salt adduct, e.g., a Na adduct, e.g., as formed in MS analysis.

In another embodiment a metabolic derivative of 2HG is evaluated. Examples include species that build up or are elevated, or reduced, as a result of the presence of 2HG, such as glutarate or glutamate that will be correlated to 2HG, e.g., R-2HG.

Exemplary 2HG derivatives include dehydrated derivatives such as the compounds provided below or a salt adduct thereof:

In one embodiment the cancer is a tumor wherein at least 30, 40, 50, 60, 70, 80 or 90% of the tumor cells carry an IDH2 mutation, and in particular an IDH2 R140Q, R140W, or R140L and/or R172K or R172G mutation, at the time of diagnosis or treatment.

In another embodiment, one aspect of the invention provides a method of treating a cancer selected from glioblastoma (glioma), myelodysplastic syndrome (MDS), myeloproliferative neoplasm (MPN), acute myelogenous leukemia (AML), sarcoma, melanoma, non-small cell lung cancer, chondrosarcoma, cholangiocarcinomas or angioimmunoblastic lymphoma in a patient by administering to the patient a compound of Formula I or Formula II in an amount effective to treat the cancer. In a more specific embodiment the cancer to be treated is glioma, myelodysplastic syndrome (MDS), myeloproliferative neoplasm (MPN), acute myelogenous leukemia (AML), melanoma, chondrosarcoma, or angioimmunoblastic non-Hodgkin's lymphoma (NHL).

2HG is known to accumulate in the inherited metabolic disorder 2-hydroxyglutaric aciduria. This disease is caused by deficiency in the enzyme 2-hydroxyglutarate dehydrogenase, which converts 2HG to α-KG (Struys, E. A. et al. Am J Hum Genet 76, 358-60 (2005)). Patients with 2-hydroxyglutarate dehydrogenase deficiencies accumulate 2HG in the brain as assessed by MRI and CSF analysis, develop leukoencephalopathy, and have an increased risk of developing brain tumors (Aghili, M., Zahedi, F. & Rafiee, J Neurooncol 91, 233-6 (2009); Kolker, S., Mayatepek, E. & Hoffmann, G. F. Neuropediatrics 33, 225-31 (2002); Wajner, M., Latini, A., Wyse, A. T. & Dutra-Filho, C. S. J Inherit Metab Dis 27, 427-48 (2004)). Furthermore, elevated brain levels of 2HG result in increased ROS levels (Kolker, S. et al. Eur J Neurosci 16, 21-8 (2002); Latini, A. et al. Eur J Neurosci 17, 2017-22 (2003)), potentially contributing to an increased risk of cancer. The ability of 2HG to act as an NMDA receptor agonist may contribute to this effect (Kolker, S. et al. Eur J Neurosci 16, 21-8 (2002)). 2HG may also be toxic to cells by competitively inhibiting glutamate and/or αKG utilizing enzymes. These include transaminases which allow utilization of glutamate nitrogen for amino and nucleic acid biosynthesis, and αKG-dependent prolyl hydroxylases such as those which regulate Hif1-alpha levels.

Thus, according to another embodiment, one aspect of the invention provides a method of treating 2-hydroxyglutaric aciduria, particularly D-2-hydroxyglutaric aciduria, in a patient by administering to the patient a compound of Structural Formula I or II or a compound described in any one of the embodiments described herein.

Treatment methods described herein can additionally comprise various evaluation steps prior to and/or following treatment with a compound of Structural Formula I or II or a compound described in any one of the embodiments described herein.

In one embodiment, prior to and/or after treatment with a compound of Structural Formula I or II or a compound described in any one of the embodiments described herein, the method further comprises the step of evaluating the growth, size, weight, invasiveness, stage and/or other phenotype of the cancer.

In one embodiment, prior to and/or after treatment with a compound of Formula I or II or a compound described in any one of the embodiments described herein, the method further comprises the step of evaluating the IDH2 genotype of the cancer. This may be achieved by ordinary methods in the art, such as DNA sequencing, immuno analysis, and/or evaluation of the presence, distribution or level of 2HG.

In one embodiment, prior to and/or after treatment with a compound of Formula I or II or a compound described in any one of the embodiments described herein, the method further comprises the step of determining the 2HG level in the subject. This may be achieved by spectroscopic analysis, e.g., magnetic resonance-based analysis, e.g., MRI and/or MRS measurement, sample analysis of bodily fluid, such as serum or spinal cord fluid analysis, or by analysis of surgical material, e.g., by mass-spectroscopy.

Combination Therapies

In some embodiments, the methods described herein comprise the additional step of co-administering to a subject in need thereof a second therapy e.g., an additional cancer therapeutic agent or an additional cancer treatment. Exemplary additional cancer therapeutic agents include for example, chemotherapy, targeted therapy, antibody therapies, immunotherapy, and hormonal therapy. Additional cancer treatments include, for example: surgery, and radiation therapy. Examples of each of these treatments are provided below.

The term “co-administering” as used herein with respect to an additional cancer therapeutic agents means that the additional cancer therapeutic agent may be administered together with a compound of one aspect of this invention as part of a single dosage form (such as a composition of one aspect of this invention comprising a compound of one aspect of the invention and an second therapeutic agent as described above) or as separate, multiple dosage forms. Alternatively, the additional cancer therapeutic agent may be administered prior to, consecutively with, or following the administration of a compound of one aspect of this invention. In such combination therapy treatment, both the compounds of one aspect of this invention and the second therapeutic agent(s) are administered by conventional methods. The administration of a composition of one aspect of this invention, comprising both a compound of one aspect of the invention and a second therapeutic agent, to a subject does not preclude the separate administration of that same therapeutic agent, any other second therapeutic agent or any compound of one aspect of this invention to said subject at another time during a course of treatment. The term “co-administering” as used herein with respect to an additional cancer treatment means that the additional cancer treatment may occur prior to, consecutively with, concurrently with or following the administration of a compound of one aspect of this invention.

In some embodiments, the additional cancer therapeutic agent is a chemotherapy agent. Examples of chemotherapeutic agents used in cancer therapy include, for example, antimetabolites (e.g., folic acid, purine, and pyrimidine derivatives), alkylating agents (e.g., nitrogen mustards, nitrosoureas, platinum, alkyl sulfonates, hydrazines, triazenes, aziridines, spindle poison, cytotoxic agents, topoisomerase inhibitors and others), and hypomethylating agents (e.g., decitabine (5-aza-deoxycytidine), zebularine, isothiocyanates, azacitidine (5-azacytidine), 5-flouro-2′-deoxycytidine, 5,6-dihydro-5-azacytidine and others). Exemplary agents include Aclarubicin, Actinomycin, Alitretinoin, Altretamine, Aminopterin, Aminolevulinic acid, Amrubicin, Amsacrine, Anagrelide, Arsenic trioxide, Asparaginase, Atrasentan, Belotecan, Bexarotene, bendamustine, Bleomycin, Bortezomib, Busulfan, Camptothecin, Capecitabine, Carboplatin, Carboquone, Carmofur, Carmustine, Celecoxib, Chlorambucil, Chlormethine, Cisplatin, Cladribine, Clofarabine, Crisantaspase, Cyclophosphamide, Cytarabine, Dacarbazine, Dactinomycin, Daunorubicin, Decitabine, Demecolcine, Docetaxel, Doxorubicin, Efaproxiral, Elesclomol, Elsamitrucin, Enocitabine, Epirubicin, Estramustine, Etoglucid, Etoposide, Floxuridine, Fludarabine, Fluorouracil (5FU), Fotemustine, Gemcitabine, Gliadel implants, Hydroxycarbamide, Hydroxyurea, Idarubicin, Ifosfamide, Irinotecan, Irofulven, Ixabepilone, Larotaxel, Leucovorin, Liposomal doxorubicin, Liposomal daunorubicin, Lonidamine, Lomustine, Lucanthone, Mannosulfan, Masoprocol, Melphalan, Mercaptopurine, Mesna, Methotrexate, Methyl aminolevulinate, Mitobronitol, Mitoguazone, Mitotane, Mitomycin, Mitoxantrone, Nedaplatin, Nimustine, Oblimersen, Omacetaxine, Ortataxel, Oxaliplatin, Paclitaxel, Pegaspargase, Pemetrexed, Pentostatin, Pirarubicin, Pixantrone, Plicamycin, Porfimer sodium, Prednimustine, Procarbazine, Raltitrexed, Ranimustine, Rubitecan, Sapacitabine, Semustine, Sitimagene ceradenovec, Strataplatin, Streptozocin, Talaporfin, Tegafur-uracil, Temoporfin, Temozolomide, Teniposide, Tesetaxel, Testolactone, Tetranitrate, Thiotepa, Tiazofurine, Tioguanine, Tipifarnib, Topotecan, Trabectedin, Triaziquone, Triethylenemelamine, Triplatin, Tretinoin, Treosulfan, Trofosfamide, Uramustine, Valrubicin, Verteporfin, Vinblastine, Vincristine, Vindesine, Vinflunine, Vinorelbine, Vorinostat, Zorubicin, and other cytostatic or cytotoxic agents described herein.

Because some drugs work better together than alone, two or more drugs are often given at the same time. Often, two or more chemotherapy agents are used as combination chemotherapy.

In some embodiments, the additional cancer therapeutic agent is a differentiation agent. Such differentiation agent includes retinoids (such as all-trans-retinoic acid (ATRA), 9-cis retinoic acid, 13-cis-retinoic acid (13-cRA) and 4-hydroxy-phenretinamide (4-HPR)); arsenic trioxide; histone deacetylase inhibitors HDACs (such as azacytidine (Vidaza) and butyrates (e.g., sodium phenylbutyrate)); hybrid polar compounds (such as hexamethylene bisacetamide ((HMBA)); vitamin D; and cytokines (such as colony-stimulating factors including G-CSF and GM-CSF, and interferons).

In some embodiments the additional cancer therapeutic agent is a targeted therapy agent. Targeted therapy constitutes the use of agents specific for the deregulated proteins of cancer cells. Small molecule targeted therapy drugs are generally inhibitors of enzymatic domains on mutated, overexpressed, or otherwise critical proteins within the cancer cell. Prominent examples are the tyrosine kinase inhibitors such as Axitinib, Bosutinib, Cediranib, dasatinib, erlotinib, imatinib, gefitinib, lapatinib, Lestaurtinib, Nilotinib, Semaxanib, Sorafenib, Sunitinib, and Vandetanib, and also cyclin-dependent kinase inhibitors such as Alvocidib and Seliciclib. Monoclonal antibody therapy is another strategy in which the therapeutic agent is an antibody which specifically binds to a protein on the surface of the cancer cells. Examples include the anti-HER2/neu antibody trastuzumab (HERCEPTIN®) typically used in breast cancer, and the anti-CD20 antibody rituximab and Tositumomab typically used in a variety of B-cell malignancies. Other exemplary antibodies include Cetuximab, Panitumumab, Trastuzumab, Alemtuzumab, Bevacizumab, Edrecolomab, and Gemtuzumab. Exemplary fusion proteins include Aflibercept and Denileukin diftitox. In some embodiments, the targeted therapy can be used in combination with a compound described herein, e.g., a biguanide such as metformin or phenformin, preferably phenformin.

Targeted therapy can also involve small peptides as “homing devices” which can bind to cell surface receptors or affected extracellular matrix surrounding the tumor. Radionuclides which are attached to these peptides (e.g., RGDs) eventually kill the cancer cell if the nuclide decays in the vicinity of the cell. An example of such therapy includes BEXXAR®.

In some embodiments, the additional cancer therapeutic agent is an immunotherapy agent. Cancer immunotherapy refers to a diverse set of therapeutic strategies designed to induce the subject's own immune system to fight the tumor. Contemporary methods for generating an immune response against tumors include intravesicular BCG immunotherapy for superficial bladder cancer, and use of interferons and other cytokines to induce an immune response in renal cell carcinoma and melanoma subjects.

Allogeneic hematopoietic stem cell transplantation can be considered a form of immunotherapy, since the donor's immune cells will often attack the tumor in a graft-versus-tumor effect. In some embodiments, the immunotherapy agents can be used in combination with a compound or composition described herein.

In some embodiments, the additional cancer therapeutic agent is a hormonal therapy agent. The growth of some cancers can be inhibited by providing or blocking certain hormones. Common examples of hormone-sensitive tumors include certain types of breast and prostate cancers. Removing or blocking estrogen or testosterone is often an important additional treatment. In certain cancers, administration of hormone agonists, such as progestogens may be therapeutically beneficial. In some embodiments, the hormonal therapy agents can be used in combination with a compound or a composition described herein.

Other possible additional therapeutic modalities include imatinib, gene therapy, peptide and dendritic cell vaccines, synthetic chlorotoxins, and radiolabeled drugs and antibodies.

EXAMPLES Abbreviations

anhy.—anhydrous dt—doublet of triplets aq.—aqueous CHCl₃—chloroform min—minute(s) DCM—dichloromethane mL—milliliter DMF—dimethylformamide mmol—millimole(s) Et₂O—diethyl ether mol—mole(s) EtOH—ethyl alcohol MS—mass spectrometry EtOAc—ethyl acetate NMR—nuclear magnetic resonance MeOH—methyl alcohol TLC—thin layer chromatography MeCN—acetonitrile HPLC—high-performance liquid PE—petroleum ether chromatography THF—tetrahydrofuran Hz—hertz AcOH—acetic acid δ—chemical shift HCl—hydrochloric acid J—coupling constant H₂SO₄—sulfuric acid s—singlet NH₄Cl—ammonium chloride d—doublet KOH—potassium hydroxide t—triplet NaOH—sodium hydroxide q—quartet K₂CO₃—potassium carbonate m—multiplet Na₂CO₃—sodium carbonate br—broad TFA—trifluoroacetic acid qd—quartet of doublets Na₂SO₄—sodium sulfate dquin—doublet of quintets NaBH₄—sodium borohydride dd—doublet of doublets NaHCO₃—sodium bicarbonate LiHMDS—lithium hexamethyldisilylamide NaHMDS—sodium hexamethyldisilylamide LAH—lithium aluminum hydride NaBH₄—sodium borohydride LDA—lithium diisopropylamide Et₃N—triethylamine DMAP—4-(dimethylamino)pyridine DIPEA—N,N-diisopropylethylamine NH₄OH—ammonium hydroxide EDCI—1-ethyl-3-(3- dimethylaminopropyl)carbodiimide HOBt—1-hydroxybenzotriazole HATU—O-(7-azabenzotriazol-1-yl)- N,N,N′,N′-tetra-methyluronium BINAP—2,2′- bis(diphenylphosphanyl)- 1,1′-binaphthyl

In the following examples, reagents were purchased from commercial sources (including Alfa, Acros, Sigma Aldrich, TCI and Shanghai Chemical Reagent Company), and used without further purification. Nuclear magnetic resonance (NMR) spectra were obtained on a Brucker AMX-400 NMR (Brucker, Switzerland). Chemical shifts were reported in parts per million (ppm, δ) downfield from tetramethylsilane. Mass spectra were run with electrospray ionization (ESI) from a Waters LCT TOF Mass Spectrometer (Waters, USA).

For exemplary compounds disclosed in this section, the specification of a stereoisomer (e.g., an (R) or (S) stereoisomer) indicates a preparation of that compound such that the compound is enriched at the specified stereocenter by at least about 90%, 95%, 96%, 97%, 98%, or 99%. The chemical name of each of the exemplary compound described below is generated by ChemDraw software.

Example 1. Preparation of Compounds of Formula I Wherein Ring A is Phenyl, and —C(R¹)(R²)(R³) is Isopropyl

The compounds of this Example are prepared by general Scheme 1, set forth below.

Example 1, Step 1: Preparation of 2,4-dichloro-6-phenyl-1,3,5-triazine (2)

To a solution of 2,4,6-trichloro-[1,3,5]triazine (1, 120 g, 0.652 mol) in anhydrous THF (1200 mL) was added phenylmagnesium bromide (217 mL, 0.651 mol, 3 M in ether) dropwise at −10 to −0° C. under N₂ protection. After the addition, the mixture was warmed to room temperature and stirred for 2 hrs. The reaction was cooled to 0° C. and quenched by addition of saturated NH₄Cl (200 mL), then extracted with ethyl acetate. The organic layer was dried, concentrated and purified via column chromatography (eluted with petroleum ether) to afford 2,4-dichloro-6-phenyl-1,3,5-triazine as a white solid. ¹H NMR (CDCl₃) δ 7.51-7.55 (m, 2H), 7.64-7.67 (m, 1H), 8.49-8.63 (m, 2H).

Example 1, Step 2: Preparation of 4-chloro-N-isopropyl-6-phenyl-1,3,5-triazin-2-amine (3)

To a solution of 2,4-dichloro-6-phenyl-1,3,5-triazine (2; 20 g, 0.089 mol) in anhydrous THF (150 mL) was added dropwise a solution of isopropylamine (5.25 g, 0.089 mol) in THF (10 mL) at room temperature via syringe under N₂. After the addition, the mixture was stirred at room temperature under N₂ for 16 hrs. The reaction was quenched by water (150 mL) and extracted with ethyl acetate. The organic layer was dried, concentrated and purified via SiO₂ chromatography to afford 4-chloro-N-isopropyl-6-phenyl-1,3,5-triazin-2-amine (3) as white solid.

¹H NMR (CDCl₃) δ 1.17-1.24 (m, 6H), 4.16-4.35 (m, 1H), 5.46-5.54 (m, 1H), 7.18-7.50 (m, 3H0, 8.31 (dd, J₁=8.4 Hz, J₂=34.4 Hz, 2H).

Example 1, Step 3 (Procedure A). Preparation of Compound 178—N-(3-Fluoro-phenyl)-N′-isopropyl-6-phenyl-[1,3,5]triazine-2,4-diamine

A mixture of (4-chloro-6-phenyl-[1,3,5]triazin-2-yl)-isopropyl-amine (3; 200 mg, 0.806 mmol) and 3-fluoro-phenylamine (135 mg, 1.215 mmol) in anhydrous THF was stirred at room temperature for 16 hrs. The reaction was quenched by water and extracted with ethyl acetate. The organic layer was washed with brine, dried over Na₂SO₄, concentrated and purified by a standard method to give N-(3-fluoro-phenyl)-N′-isopropyl-6-phenyl-[1,3,5]triazine-2,4-diamine.

¹H NMR (METHANOL-d₄) δ 8.37-8.33 (m, 2H), 7.87-7.84 (m, 1H), 7.52-7.48 (m, 5H), 7.27-7.25 (m, 1H), 6.73-6.69 (m, 1H), 4.24 (m, 1H), 1.16 (d, J=6.4 Hz, 6H). LC-MS: m/z 323.9 (M+H)⁺. Other compounds produced by Step 3, Procedure A of this example using the appropriate reagent 4 are set forth below.

Compound 195—N²-isopropyl-N⁴-(3-(methoxymethyl)phenyl)-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) 8.40-8.34 (m, 2H) 7.99-7.83 (m, 1H), 7.62-7.60 (m, 1H), 7.53-7.44 (m, 3H), 7.31-7.27 (m, 1H), 7.00-6.99 (m, 1H), 4.48 (s, 2H) 4.29-4.27 (m, 1H), 3.41 (s, 3H), 1.16 (d, J=6.8 Hz, 6H). LC-MS: m/z 350.3 (M+H)⁺.

Compound 198—2-(3-(4-(isopropylamino)-6-phenyl-1,3,5-triazin-2-ylamino)phenyl)acetonitrile

¹H NMR (METHANOL-d₄) 8.42-8.38 (m, 2H) 8.18-8.11 (m, 1H), 7.61-7.60 (m, 1H), 7.52-7.45 (m, 3H), 7.35-7.31 (m, 1H), 7.02-7.00 (m, 1H), 4.34 (m, 1H), 3.92 (s, 2H), 1.16 (d, J=6.8 Hz, 6H). LC-MS: m/z 345.2 (M+H)⁺.

Compound 201—2-(3-(4-(isopropylamino)-6-phenyl-1,3,5-triazin-2-ylamino)phenyl)propan-2-ol

¹H NMR (METHANOL-d₄) 8.36-8.35 (m, 2H), 8.06-8.01 (m, 1H), 7.55-7.44 (m, 4H), 7.29-7.25 (m, 1H), 7.20-7.18 (m, 1H), 4.46-4.41 (m, 1H), 1.58 (s, 6H), 1.16 (d, J=6.8 Hz, 6H). LC-MS: m/z 364.1 (M+H)⁺.

Compound 204—N-ethyl-3-(4-(isopropylamino)-6-phenyl-1,3,5-triazin-2-ylamino)benzenesulfonamide

¹H NMR (METHANOL-d₄) δ 8.86-8.64 (m, 1H), 8.44-8.38 (m, 2H), 7.82-7.72 (m, 1H), 7.53-7.44 (m, 5H), 4.37-4.35 (m, 1H), 2.97-2.92 (m, 2H), 1.299-1.282 (d, J=6.8 Hz, 6H), 1.09-1.05 (t, 3H).

LC-MS: m/z 413.1 (M+H)⁺.

Compound 205—N²-(3-(ethylsulfonyl)phenyl)-N⁴-isopropyl-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.81-8.79 (m, 1H), 8.28-8.26 (m, 2H), 7.82-7.63 (m, 6H), 4.45-4.42 (m, 1H), 3.26-3.23 (m, 2H), 1.386-1.369 (d, J=6.8 Hz, 6H), 1.27-1.24 (t, 3H). LC-MS: m/z 398.0 (M+H)⁺.

Compound 206—N²-isopropyl-N⁴-(3-(isopropylsulfonyl)phenyl)-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 9.00-8.97 (m, 1H) 8.45-8.39 (m, 2H), 7.78-7.76 (m, 1H), 7.58-7.44 (m, 5H), 4.36-4.31 (m, 1H), 3.32-3.31 (m, 1H), 1.31-1.29 (m, 6H). LC-MS: m/z 412.0 (M+H)⁺.

Compound 341—N-cyclopropyl-3-(4-(isopropylamino)-6-phenyl-1,3,5-triazin-2-ylamino)benzenesulfonamide

¹H NMR (METHANOL-d₄) δ 8.77-8.72 (m, 1H), 8.24-8.22 (m, 2H), 7.67-7.62 (m, 6H), 4.48-4.45 (m, 1H), 2.24-2.16 (m, 1H), 1.378-1.362 (d, J=6.4 Hz, 6H), 0.53-0.51 (m, 4H). LC-MS: m/z 425.3 (M+H)⁺.

Compound 342—N-tert-butyl-3-(4-(isopropylamino)-6-phenyl-1,3,5-triazin-2-ylamino)benzenesulfonamide

¹H NMR (METHANOL-d₄) δ 8.88-8.69 (m, 1H), 8.45-8.49 (m, 2H), 7.77-7.70 (m, 1H), 7.53-7.44 (m, 5H), 4.40-4.37 (m, 1H), 1.304-1.288 (d, J=6.4 Hz, 6H), 1.21 (s, 9H). LC-MS: m/z 441.3 (M+H)⁺.

Compound 351—2-(4-(isopropylamino)-6-phenyl-1,3,5-triazin-2-ylamino)phenol

¹H NMR (METHANOL-d₄) δ 8.40-8.32 (m, 2H), 8.00-7.99 (m, 1H), 7.57-7.47 (m, 3H), 6.97-6.87 (m, 3H), 4.45-4.21 (m, 1H), 1.31 (d, J=6.8 Hz, 6H). LC-MS: m/z 321.9 (M+H).

Example 1, Step 3 (Procedure B). Preparation of Compound 288—N²-isopropyl-N-(2-methylpyridin-4-yl)-6-phenyl-1,3,5-triazine-2,4-diamine

To a solution of (4-chloro-6-phenyl-[1,3,5]triazin-2-yl)-isopropyl-amine (3; 150 mg, 0.6 mmol) in DMSO (2 mL) was added 2-methylpyridin-4-amine (78.4 mg, 0.73 mmol), CsF (310 mg, 1.21 mmol) and DIPEA (230 mg, 1.81 mmol). The mixture was stirred at 80° C. for 2 h. The mixture was cooled down to rt and filtered to remove the solid. The filtrate was purified by a standard method to give N²-isopropyl-N⁴-(2-methylpyridin-4-yl)-6-phenyl-1,3,5-triazine-2,4-diamine (110 mg, 57.9%).

¹H NMR (METHANOL-d₄) δ 8.19-8.40 (m, 5H), 7.53-7.58 (m, 3H), 4.30-4.43 (m, 1H), 2.66-2.77 (m, 3H), 1.33 (d, J=4.4 Hz, 6H). LC-MS: m/z 321.1 (M+H)⁺.

Additional compounds of Formula I were made using the appropriate reagent 4 and following Step 3, Procedure B.

Compound 292—N²-(3-fluoropyridin-4-yl)-N⁴-isopropyl-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 1.34-1.39 (m, 6H), 4.43-4.51 (m, 1H), 7.19-7.25 (m, 1H), 7.53-7.65 (m, 3H), 8.53-8.58 (m, 2H), 9.40-9.45 (m, 1H), 9.56-9.60 (m, 1H). LC-MS: m/z 325.0 (M+H)⁺.

Compound 298—N²-isopropyl-N⁴-(2-morpholinopyridin-4-yl)-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.35-8.37 (m, 2H), 7.76-7.90 (m, 2H), 7.51-7.52 (m, 3H), 7.45-7.47 (m, 1H), 4.23-4.49 (m, 1H), 3.82-3085 (m, 4H), 3.50-3.51 (m, 4H), 1.30 (d, J=6.4 Hz, 6H).

LC-MS: m/z 392.1 (M+H)⁺.

Compound 299—N²-(2-(azetidin-1-yl)pyridin-4-yl)-N⁴-isopropyl-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.38-8.43 (m, 2H), 7.46-7.74 (m, 5H), 6.88-6.90 (m, 1H), 4.21-4.25 (m, 4H), 2.53-2.56 (m, 2H), 1.30 (d, J=6.4 Hz, 6H). LC-MS: m/z 362.0 (M+H)⁺.

Example 1, Step 3 (Procedure C). Preparation of Compound 146—N-(6-fluoro-pyridin-3-yl)-N′-isopropyl-6-phenyl-[1,3,5]triazine-2,4-diamine

A mixture of (4-chloro-6-phenyl-[1,3,5]triazin-2-yl)-isopropyl-amine (3; 400 mg, 1.61 mmol), 6-fluoro-pyridin-3-ylamine (272 mg, 2.43 mmol) Pd(dppf)Cl₂ (120 mg, 0.164 mmol) and t-BuONa (310 mg, 3.23 mmol) was stirred at 80° C. under N₂ for 2 hrs. The mixture was cooled to room temperature and quenched by water, then extracted with ethyl acetate. The organic layer was washed with brine, dried over Na₂SO₄, concentrated and purified by a standard method to give N-(6-fluoro-pyridin-3-yl)-N′-isopropyl-6-phenyl-[1,3,5]triazine-2,4-diamine.

1H NMR (METHANOL-d4) δ 8.41-8.39 (m, 2H), 7.91-7.88 (m, 5H), 7.62-7.45 (m, 3H), 5.55-5.20 (m, 1H), 4.44-4.20 (m., 1H), 3.05 (s., 1H), 1.31 (dd, J=4, 400 MHz, 6H). LC-MS: m/z 384.2 (M+H)+

Additional compounds of Formula 1 in the example that were prepared according to Example 1, Step 3, Procedure C using the appropriate reagent 4 are set forth below.

Compound 177—3-(4-(isopropylamino)-6-phenyl-1,3,5-triazin-2-ylamino)-N,N-dimethylbenzenesulfonamide

¹H NMR (METHANOL-d₄) δ 8.99-8.78 (m, 1H), 8.39-8.37 (m, 2H), 7.99-7.97 (m, 1H), 7.91-7.65 (m, 1H), 7.54-7.38 (m. 5H), 4.41-4.38 (m, 1H), 2.71 (s, 6H), 1.293-1.277 (d, J=6.4 Hz, 6H). LC-MS: m/z 413.1 (M+H)⁺.

Compound 193-N²-(5-fluoropyridin-3-yl)-N⁴-isopropyl-6-phenyl-1,3,5-triazine-2,4-diamine

1H NMR (METHANOL-d4) δ 8.47-8.15 (m, 5H), 7.52-7.44 (m, 3H), 7.24-7.17 (m, 1H), 5.37-5.16 (m, 1H), 4.44-4.19 (m., 1H), 3.05 (s., 1H), 1.16 (dd, J=4, 400 MHz, 6H). LC-MS: m/z 325.1 (M+H)⁺

Compound 194—N²-(5-chloropyridin-3-yl)-N⁴-isopropyl-6-phenyl-1,3,5-triazine-2,4-diamine

1H NMR (METHANOL-d4) δ 8.59-8.25 (m, 5H), 7.52-7.45 (m, 3H), 7.39-7.26 (m, 1H), 5.44-5.23 (m, 1H), 4.45-4.20 (m., 1H), 3.05 (s., 1H), 1.31 (dd, J=4, 400 MHz, 6H). LC-MS: m/z 340.9 (M+H)⁺

Compound 196—N²-(6-fluoropyridin-3-yl)-N⁴-isopropyl-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.63-8.57 (m, 1H), 8.38-8.35 (m, 3H), 7.51-7.45 (m, 3H), 7.05-7.01 (m. 1H), 4.40-4.23 (m, 1H), 1.286-1.273 (d, J=5.2 Hz, 6H). LC-MS: m/z 325.2 (M+H)⁺.

Compound 197—4-(4-(isopropylamino)-6-phenyl-1,3,5-triazin-2-ylamino)picolinonitrile

¹H NMR (METHANOL-d₄) δ 8.56-8.32 (m, 4H), 8.03-8.02 (m, 1H), 7.67-7.57 (m. 3H), 4.42-4.33 (m, 1H), 1.36-1.28 (br, 6H). LC-MS: m/z 332.1 (M+H)⁺.

Compound 199—N²-(2-chloropyridin-4-yl)-N⁴-isopropyl-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.43-8.37 (m, 2H), 8.23-8.10 (m, 2H), 7.67-7.66 (m, 1H), 7.55-7.45 (m. 3H), 4.27-4.24 (m, 1H), 1.327-1.311 (d, J=6.4 Hz, 6H). LC-MS: m/z 341.2 (M+H)⁺.

Compound 200—N²-(2-ethoxypyridin-4-yl)-N⁴-isopropyl-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.41-8.36 (m, 2H), 7.91-7.88 (m, 1H), 7.52-7.45 (m. 4H), 7.30-7.29 (m, 1H), 4.30-4.25 (m, 1H), 1.42-1.38 (t, 3H), 1.308-1.292 (d, J=6.4 Hz, 6H). LC-MS: m/z 351.2 (M+H)⁺.

Compound 202—N²-isopropyl-6-phenyl-N⁴-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 10.45-10.27 (m, 1H), 8.68-8.28 (m, 4H), 7.99-7.51 (m, 5H), 4.17-4.16 (m., 1H), 3.25 (s, 6H), 1.24 (dd, J=4, 400 MHz, 6H). LC-MS: m/z 375.1 (M+H)⁺.

Compound 210—5-(4-(isopropylamino)-6-phenyl-1,3,5-triazin-2-ylamino)nicotinonitrile

¹H NMR (METHANOL-d₄) δ 8.75-9.25 (m, 2H), 8.34-8.48 (m, 3H), 7.76-7.51 (m, 3H), 4.0-4.58 (m, 1H), 1.30 (d, J=6.8 Hz, 6H). LC-MS: m/z 331.9 (M+H)⁺.

Compound 223-N²-(2-fluoropyridin-4-yl)-N⁴-isopropyl-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.43-8.37 (m, 2H), 7.99-7.97 (m, 1H), 7.86-7.80 (m, 1H), 7.65-7.45 (m. 4H), 4.28-4.22 (m, 1H), 1.315-1.299 (d, J=6.4 Hz, 6H). LC-MS: m/z 325.1 (M+H)⁺.

Compound 224—N²-(2-(ethylamino)pyridin-4-yl)-N⁴-isopropyl-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.53-8.49 (m, 1H), 8.42-8.36 (m, 2H), 7.74-7.72 (m, 2H), 7.53-7.46 (m, 3H), 7.03-6.99 (m. 1H), 4.42-4.24 (m, 1H), 3.36-3.31 (m, 2H), 1.34-1.16 (m, 9H). LC-MS: m/z 350.0 (M+H)⁺.

Compound 266—N²-isopropyl-6-phenyl-N⁴-(pyrimidin-5-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 9.25-9.30 (m, 2H), 8.78-8.79 (m, 1H), 8.36-8.43 (m, 2H), 7.45-7.53 (m, 3H), 4.25-4.62 (m, 1H), 1.31 (d, J=6.4 Hz, 6H). LC-MS: m/z 308.2 (M+H)⁺.

Compound 277—N²-(3-(ethylsulfinyl)phenyl)-N⁴-isopropyl-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.51-8.32 (m, 3H), 7.76-7.52 (m, 4H), 7.35-7.27 (m, 1H), 4.50-4.32 (m, 1H), 3.14-3.03 (m, 1H), 2.94-2.89 (m, 1H), 1.33 (d, J=6.0 Hz, 6H), 1.23 (t, J=7.2 Hz, 3H). LC-MS: m/z 382.1 (M+H)⁺.

Compound 281—N²-isopropyl-N⁴-(6-methylpyridin-3-yl)-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.99-8.83 (m, 1H), 8.40-8.35 (m, 2H), 8.32-8.13 (m, 1H), 7.55-7.45 (m, 3H), 7.30-7.28 (m, 1H), 4.46-4.22 (m, 1H), 2.52 (s, 3H), 1.30 (d, J=6.8 Hz, 6H). LC-MS: m/z 321.2 (M+H)⁺.

Compound 289—N²-(6-chloropyridin-3-yl)-N⁴-isopropyl-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.79-8.86 (m, 1H), 8.25-8.40 (m, 3H), 7.37-7.53 (m, 4H), 4.40-4.61 (m, 1H), 1.30 (d, J=6.4 Hz, 6H). LC-MS: m/z 340.9 (M+H).

Compound 293—N²-(2-(dimethylamino)pyridin-4-yl)-N⁴-isopropyl-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.44-8.38 (m, 2H), 7.86-7.79 (m, 2H), 7.54-7.45 (m, 3H), 7.02-7.00 (m, 1H), 4.30 (m., 1H), 3.25 (s, 6H), 1.30 (dd, J=8, 400 MHz, 6H). LC-MS: m/z 350.1 (M+H)⁺.

Compound 301—N²-isopropyl-N⁴-(2-(isopropylamino)pyridin-4-yl)-6-phenyl-1,3,5-triazine-2,4-diamine

H NMR (DMSO-d₄) δ 1.03-1.09 (m, 12H), 3.57-3.74 (m 1H), 3.99-4.18 (m, 1H), 7.00 (br, 1H), 7.34-8.35 (m, 9H), 10.7 (d, 1H). LC-MS: m/z 364 (M+H)⁺.

Compound 302—N²-isopropyl-N⁴-(2-(methylamino)pyridin-4-yl)-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.42-8.35 (m, 2H), 7.79-7.54 (m, 5H), 7.12-7.10 (m, 1H), 4.35 (m., 1H), 3.03 (s, 3H), 1.30 (dd, J=16, 400 MHz, 6H). LC-MS: m/z 336.2 (M+H)⁺.

Compound 303—N²-isopropyl-N⁴-(6-(methylamino)pyridin-3-yl)-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.50 (m, 1H), 8.25-8.24 (m, 2H), 8.07-8.05 (m, 1H), 7.75-7.63 (m, 3H), 7.14-7.11 (m, 1H), 4.35 (m., 1H), 3.07 (s, 3H), 1.35 (dd, J=8, 400 MHz, 6H). LC-MS: m/z 336.2 (M+H)⁺.

Compound 308—N²-isopropyl-N⁴-(1-methyl-1H-pyrazol-4-yl)-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.49-8.20 (m, 2H), 8.21-8.15 (m, 1H), 7.70-7.50 (m, 4H), 4.49-4.25 (m, 1H), 3.91 (s, 3H), 1.33 (d, J=6.8 Hz, 6H). LC-MS: m/z 310.2 (M+H).

Compound 309—N²-isopropyl-N⁴-(isoxazol-4-yl)-6-phenyl-1,3,5-triazine-2,4-diamine

1H NMR (METHANOL-d₄) δ 9.30-9.12 (m, 1H), 8.57 (s, 1H), 8.39-8.34 (m, 2H), 7.53-7.47 (m, 3H), 4.41-4.25 (m, 1H), 1.31 (d, J=5.2 Hz, 6H). LC-MS: m/z 297.2 (M+H).

Compound 310—N²-(2,6-dimethylpyridin-4-yl)-N⁴-isopropyl-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.46-8.40 (m, 2H), 8.08-8.06 (m, 2H), 7.57-7.48 (m, 3H), 4.47-4.20 (m, 1H), 2.66 (s, 6H), 1.34 (d, J=6.4 Hz, 6H). LC-MS: m/z 335.3 (M+H)⁺.

Compound 311—N²-(6-(cyclopropylmethoxy)pyridin-3-yl)-N⁴-isopropyl-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.56-8.34 (m, 3H), 8.09-8.07 (m, 1H), 7.53-7.45 (m, 3H), 6.84-6.81 (m, 1H), 4.41-4.25 (m, 1H), 4.10 (d, J=6.8 Hz, 1H), 1.30 (d, J=6.4 Hz, 1H), 1.21-1.20 (m, 1H), 0.65-0.61 (m, 2H), 0.39-0.36 (m, 2H). LC-MS: m/z 377.3 (M+H)⁺.

Compound 312—N²-(6-isopropoxypyridin-3-yl)-N⁴-isopropyl-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ 8.59-8.42 (m, 3H), 8.07-8.04 (m, 1H), 7.53-7.45 (m, 3H), 6.77-6.75 (m, 1H), 5.19-5.16 (m, 1H), 4.43-4.21 (m, 1H), 1.35 (d, J=6.0 Hz, 6H), 1.29 (d, J=6.4 Hz, 6H). LC-MS: m/z 365.2 (M+H)⁺.

Compound 313—N²-isopropyl-6-phenyl-N⁴-(thiazol-5-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.59-8.38 (m, 3H), 7.69-7.48 (m, 4H), 4.45-4.23 (m, 1H), 1.22 (d, J=6.8 Hz, 6H). LC-MS: m/z 313.1 (M+H)⁺.

Compound 314—N²-isopropyl-6-phenyl-N⁴-(3-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 9.58 (s, 1H), 9.35 (s, 1H), 8.45-8.40 (m, 2H), 7.56-7.42 (m, 3H), 7.11 (s, 1H), 4.28-4.25 (m, 1H), 1.25 (d, J=6.4 Hz, 6H). LC-MS: m/z 375.2 (M+H)⁺.

Compound 315—N²-(2-cyclopropylpyridin-4-yl)-N⁴-isopropyl-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.43-8.34 (m, 2H), 8.21-8.18 (m, 1H), 7.93-7.16 (m, 2H), 7.54-7.45 (m. 3H), 4.29-4.26 (m, 1H), 2.15-2.12 (m, 1H), 1.319-1.303 (d, J=6.4 Hz, 6H), 1.19-1.18 (m, 2H) 1.03-1.02 (m, 2H). LC-MS: m/z 347.3 (M+H)⁺.

Compound 316—N²-(6-cyclopropylpyridin-3-yl)-N⁴-isopropyl-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 9.01-8.98 (m, 1H), 8.40-8.34 (m, 2H), 8.16-8.13 (m, 1H), 7.54-7.44 (m, 3H), 7.27-7.25 (m. 1H), 4.27-4.24 (m, 1H), 1.299-1.282 (d, J=6.8 Hz, 6H), 1.11-1.06 (m, 2H) 0.97-0.96 (m, 2H). LC-MS: m/z 347.3 (M+H)⁺.

Compound 329—N²-isopropyl-6-phenyl-N⁴-(5-(trifluoromethyl)pyridin-3-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.99-9.03 (m, 2H), 8.36-8.47 (m, 3H), 7.45-7.52 (m, 3H), 4.18-4.57 (m, 1H), 1.30 (d, J=6.4 Hz, 6H). LC-MS: m/z 375.2 (M+H)⁺.

Compound 332—N²-isopropyl-N⁴-(1-methyl-1H-imidazol-4-yl)-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.51-8.22 (m, 3H), 7.48-7.38 (m, 3H), 7.28 (s, 1H), 4.38-4.12 (m, 1H), 3.83 (s, 3H), 1.18 (d, J=6.4 Hz, 6H). LC-MS: m/z 309.9 (M+H).

Compound 129—N²-isopropyl-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) d 14.92 (br. s., 1H), 112.-11.13 (m, 1H), 8.68-8.63 (m, 2H), 8.41-8.36 (m, 4H), 8.24-8.10 (m, 1H), 7.63-7.53 (m, 3H), 4.34-4.17 (m., 1H), 1.17 (dd, J=4, 400 MHz, 6H). LC-MS: m/z 307.2 (M+H)⁺.

Compound 343—N²-isopropyl-N⁴-(2-methylpyrimidin-5-yl)-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) 9.17-9.11 (m, 2H), 8.42-8.35 (m, 2H), 7.55-7.44 (m. 3H), 4.26-4.23 (m, 1H), 2.66 (s, 3H), 1.308-1.292 (d, J=6.4 Hz, 6H). LC-MS: m/z 322.2 (M+H)⁺.

Compound 376—N²-(3-(azetidin-1-ylsulfonyl)phenyl)-N⁴-isopropyl-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) 8.99-8.86 (m, 1H), 8.44-8.38 (m, 2H), 7.77-7.75 (m, 1H), 7.60-7.44 (m. 5H), 4.35-4.32 (m, 1H), 3.82-3.78 (m, 4H), 2.10-2.02 (m, 2H), 1.300-1.284 (d, J=6.4 Hz, 6H). LC-MS: m/z 425.2 (M+H)⁺.

Example 2. Preparation of Compounds of Formula I Wherein Ring A is Optionally Substituted Pyridin-2-yl or Pyrimnidin-2-yl

The compounds of this Example are prepared by general Scheme 2, set forth below.

Example 2, Step 1: Preparation of 1-phenyl-2-cyanoguanidine (5)

To a solution of NaN(CN)₂ (50 g, 0.5618 mol) in water (430 mL) at 80° C. was added a solution of aniline (26.2 g, 0.28 mol) in water and conc. HCl (132 mL/23.5 mL). The mixture was heated to 90° C. for 16 hours. The mixture was cooled to room temperature and quenched by adding saturated sodium bicarbonate (317 mL). The mixture was filtered and the filter cake was dried via vacuum to afford 1-phenyl-2-cyanoguanidine as a white solid.

¹H NMR (DMSO-d4) δ 6.95 (s, 2H), 7.02-7.06 (m, 1H), 7.26-7.32 (m, 4H), 9.00 (s, 1H).

The procedure set forth in Example 2, Step 1 was used to produce the following intermediates (5) using the appropriate starting material 4.

1-(3-cyanophenyl-2-cyanoguanidine as a brown solid.

LC-MS: m/z 185.9 (M+H)⁺.

1-methanesulfonyl-benzenyl-2-cyanoguanidine as a pale gray solid.

LC-MS: m/z 238.8 (M+H)⁺.

1-3-fluoro-pyridin-2-cyanoguanidine as a pale solid.

¹H NMR (DMSO-d4) δ 7.42 (s, 2H), 7.85-8.01 (m, 1H), 8.24 (s, 1H), 8.38 (s, 1H).

1-3-chloro-pyridin-2-cyanoguanidine as a pale gray solid.

¹H NMR (DMSO-d4) δ 8.06 (s, 1H), 8.29 (s, 1H), 8.47 (s, 1H).

1-2-fluoro-pyridin-2-cyanoguanidine as a brown solid.

¹H NMR (DMSO-d4) δ 7.10-7.20 (m, 1H), 7.95-7.99 (m, 1H), 8.15 (s, 1H).

1-3,5-difluoro-phenyl-2-cyano-guanidine as white solid, which was directly used in the next step without further purification.

LC-MS: m/z 196.8 (M+H)⁺.

Example 2, Step 2: Preparation of 1-phenyl-2-isopropylamine-diguanidine(7)

To a mixture of 1-phenyl-2-cyanoguanidine (5.0 g, 0.031 mol) in ethanol/water (46 mL/18.4 mL) was added CuSO₄.5H₂O (3.91 g, 0.01563 mol), followed by isopropyl amine (5.53 g, 0.03975 mol). The mixture was heated to reflux for 16 hours. To the mixture was added water (137 mL) and aq.HCl (15.5 mL in 93 mL of water) at 25-30° C. The resultant mixture was stirred at r.t. for 30 min. Then Na₂S (12.4 g in 62 mL of water) was added and stirred for another 30 min. The insoluble CuS was filtered off. The filtrate was cooled to 10° C. and added aqueous NaOH (7 g NaOH in 50 mL water) dropwise. The mixture was extracted with dichloromethane (100 mL×3). The organic layer was combined, dried over Na₂SO₄ and concentrated to give 1-phenyl-2-isopropylamine-diguanidine as a brown solid.

¹H NMR (DMSO-d4) δ 1.25 (d, J=4.8 Hz, 6H), 4.91-4.97 (m, 1H), 7.17-7.39 (m, 5H).

The procedure set forth in Example 2, Step 2 was used to produce the following intermediates (7) using the appropriate intermediate 5 and the appropriate amine 6.

1-3-cyanophenyl-2-isopropylamine-diguanidine as a brown solid.

LC-MS: m/z 245 (M+H)⁺.

1-methanesulfonyl-2-isopropyl-diguanidine as a pale solid.

LC-MS: m/z 298 (M+H)⁺.

1-3-fluoro-pyridin-2-cyclobutyl-diguanidine as a red solid.

LC-MS: m/z 251 (M+H)⁺.

1-3-chloro-pyridin-2-cyclobutyl-diguanidine as a red solid.

LC-MS: m/z 267 (M+H)⁺.

1-2-fluoro-pyridin-2-cyclobutyl-diguanidine as a red solid.

LC-MS: m/z 250.8 (M+H)⁺.

1-3,5-difluoropneyl-2-isopropyl-diguanidine as a brown solid, which was used in the next step without further purification.

LC-MS: m/z 256 (M+H)⁺.

Example 2, Step 3: Preparation of Compound 214—N-Isopropyl-N′-phenyl-6-pyridin-2-yl-[1,3,5]triazine-2,4-diamine

To a mixture of N-isopropyl-N′-phenyl-6-pyridin-2-yl-[1,3,5]triazine-2,4-diamine (0.5 g, 2.28 mmol) and pyridine-2-carboxylic acid methyl ester (0.312 g, 2.28 mmol) in methanol (7 mL) was added NaOMe (0.25 g, 4.56 mmol). The mixture was stirred at r.t. for 16 hours. The mixture was poured into water and extracted with ethyl acetate (50 mL), dried over Na₂SO₄, concentrated and purified by a standard method to afford N-isopropyl-N′-phenyl-6-pyridin-2-yl-[1,3,5]triazine-2,4-diamine.

¹H NMR (METHANOL-d₄) δ 8.72-8.73 (d, 1H), 8.47-8.49 (d, 1H), 7.97-8.01 (t, 1H), 7.77-7.79 (d, 2H), 7.56-7.59 (t, 1H), 7.31-7.35 (t, 2H), 7.04-7.07 (t, 1H), 4.40-4.45 (m, 1H), 1.30-1.31 (d, 6H). LC-MS: m/z 307.0 (M+H)⁺.

Additional compounds of Formula I set forth below were similarly produced following Scheme 2 utilizing the appropriate intermediates and reagents.

Compound 228—6-(4-chloropyridin-2-yl)-N²-isopropyl-N⁴-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.63-8.64 (d, 1H), 8.48 (s, 1H), 7.73-7.75 (d, 2H), 7.63 (s, 1H), 7.29-7.31 (t, 2H), 7.05-7.10 (t, 1H), 4.21-4.24 (m, 1H), 1.27-1.29 (d, 6H). LC-MS: m/z 341.0 (M+H)⁺.

Compound 229—6-(6-chloropyridin-2-yl)-N²-isopropyl-N⁴-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.37-8.39 (d, 1H), 7.91-7.95 (t, 1H), 7.72-7.74 (d, 2H), 7.56-7.58 (d, 1H), 7.29-7.32 (t, 2H), 7.02-7.04 (t, 1H), 4.23-4.29 (m, 1H), 1.27-1.28 (d, 6H). LC-MS: m/z 341.0 (M+H)⁺.

Compound 230—6-(3-chloropyridin-2-yl)-N²-isopropyl-N⁴-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.54-8.55 (d, 1H), 8.01-8.03 (d, 1H), 7.70-7.72 (d, 1H), 7.50-7.53 (m, 1H), 7.27-7.31 (t, 2H), 7.04 (s, 1H), 4.32-4.40 (m, 1H), 1.21-1.30 (m, 6H). LC-MS: m/z 340.9 (M+H)⁺.

Compound 231—6-(4-(isopropylamino)-6-(phenylamino)-1,3,5-triazin-2-yl)pyridin-2-ol

¹H NMR (METHANOL-d₄) δ 7.70-7.75 (m, 3H), 7.43-7.47 (d, 1H), 7.28-7.33 (t, 2H), 7.02-7.07 (t, 1H), 6.68-6.72 (m, 1H), 4.28-4.39 (m, 1H), 1.33-1.35 (d, 6H). LC-MS: m/z 323.0 (M+H)⁺.

Compound 246—3-(4-(isopropylamino)-6-(pyridin-2-yl)-1,3,5-triazin-2-ylamino)benzonitrile

¹H NMR (METHANOL-d₄) δ 8.71-8.72 (d, 1H), 8.41-8.51 (m, 2H), 7.90-8.00 (m, 2H), 7.44-7.58 (m, 2H), 7.33-7.37 (t, 1H), 4.22-4.27 (m, 1H), 1.27-1.33 (m, 6H). LC-MS: m/z 332.0 (M+H)⁺.

Compound 247—N²-isopropyl-N⁴-phenyl-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d6) δ 8.64-8.66 (m, 1H), 8.19 (m, 1H), 7.94 (m, 1H), 7.77 (m, 2H), 7.27-7.34 (m, 2H), 7.05 (m, 1H), 4.24-4.49 (m, 1H), 1.30 (d, 6H). LC-MS: m/z 375.0 (M+H)⁺.

Compound 270—N²-isopropyl-N⁴-phenyl-6-(4-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.99 (d, 1H), 8.76 (m, 1H), 7.89 (m, 1H), 7.79 (m, 2H), 7.29-7.39 (m, 2H), 7.05 (m, 1H), 4.21-4.52 (m, 1H), 1.29-1.33 (m, 6H). LC-MS: m/z 375 (M+H)⁺.

Compound 290—6-(6-aminopyridin-2-yl)-N²-isopropyl-N-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 7.92-8.03 (m, 1H), 7.72-7.83 (m, 1H), 7.69 (m, 2H), 7.29-7.33 (m, 2H), 7.14 (m., 1H), 7.06 (m, 1H), 4.15-4.51 (m, 1H), 1.25 (d, 6H). LC-MS: m/z 322.1 (M+H)⁺.

Compound 322—N²-cyclobutyl-N⁴-(5-fluoropyridin-3-yl)-6-(pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ 10.3 (s, 1H), 8.69-8.85 (m, 2H), 8.34-8.59 (m, 2H), 8.17-8.29 (m, 2H), 7.99 (m, 1H), 7.55 (m, 1H), 4.35-4.70 (m, 1H), 2.31 (m, 2H), 2.05 (m, 2H), 1.72 (m, 2H). LC-MS: m/z 337.9 (M+H)⁺.

Compound 323—6-(6-chloropyridin-2-yl)-N²-cyclobutyl-N⁴-(5-fluoropyridin-3-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ 10.4 (s, 1H), 8.80 (s, 1H), 8.52-8.62 (m, 1H), 8.27-8.42 (m, 2H), 8.22 (m, 1H), 8.09 (m, 1H), 7.70 (m, 1H), 4.35-4.69 (m, 1H), 2.31 (m, 2H), 2.09 (m, 2H), 1.72 (m, 2H). LC-MS: m/z 372.2 (M+H)⁺.

Compound 325—6-(6-chloropyridin-2-yl)-N²-cyclobutyl-N⁴-(6-fluoropyridin-3-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ 10.22 (s, 1H), 8.59-8.69 (d, 1H), 8.12-8.51 (m, 3H), 8.07 (m, 1H), 7.69 (m., 1H), 7.11-7.24 (m, 1H), 4.32-4.66 (m, 1H), 2.33 (m, 2H), 2.06 (m, 2H), 1.72 (m, 2H). LC-MS: m/z 371.9 (M+H)⁺.

Compound 330—N²-(5-chloropyridin-3-yl)-N⁴-cyclobutyl-6-(pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ 10.33 (s, 1H), 8.83-9.98 (m, 1H), 8.76 (m, 1H), 8.55-8.69 (m, 1H), 8.31-8.52 (m., 1H), 8.18-8.29 (m, 2H), 8.01 (m, 1H), 7.57 (m, 1H), 4.35-4.69 (m, 1H), 2.33 (m, 2H), 2.06 (m, 2H), 1.72 (m, 2H). LC-MS: m/z 354.2 (M+H)⁺.

Compound 331—N²-isopropyl-6-(6-(methylamino)pyridin-2-yl)-N⁴-phenyl-1,3,5-triazine-2,4-diamine

1H NMR (METHANOL-d₄) δ 7.76 (m, 2H), 7.60 (m, 2H), 7.31 (m, 2H), 7.04 (m, 1H), 6.64 (m, 1H), 4.19-4.48 (m, 1H), 2.96 (s, 3H), 1.27 (m, 6H). LC-MS: m/z 336.2 (M+H)⁺.

Compound 344—6-(6-chloropyridin-2-yl)-N²-(6-fluoropyridin-3-yl)-N⁴-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ 10.21-10.81 (d, 1H), 8.61-8.79 (d, 1H), 8.04-8.51 (m, 4H), 7.69-7.81 (m, 1H), 7.12-7.24 (m, 1H), 4.05-4.32 (m, 1H), 1.22 (d, 6H). LC-MS: m/z 359.9 (M+H)⁺. 381.9 (M+Na)⁺.

Compound 326—6-(6-chloropyridin-2-yl)-N²-isopropyl-N⁴-(3-(methylsulfonyl)phenyl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.99 (s, 1H), 8.46-8.47 (d, 1H), 7.96-7.99 (m, 1H), 7.74-7.77 (m, 1H), 7.55-7.62 (m, 3H), 4.32-4.50 (m, 1H), 3.18 (s, 3H), 1.28-1.32 (d, 6H). LC-MS: m/z 418.9 (M+H)⁺.

Compound 340—6-(6-chloropyridin-2-yl)-N²-(3,5-difluorophenyl)-N⁴-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.41-8.45 (t, 1H), 8.00-8.04 (t, 1H), 7.63-7.69 (m, 1H), 6.64-6.69 (t, 1H), 4.22-4.27 (m, 1H), 1.29-1.35 (d, 6H). LC-MS: m/z 377.2 (M+H)⁺.

Compound 358—N²-isopropyl-N⁴-(3-(methylsulfonyl)phenyl)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.99 (s, 1H), 8.60-8.72 (m, 1H), 8.19 (t, 1H), 7.81 (d, 1H), 7.77-7.78 (m, 1H), 7.55-7.62 (m, 2H), 4.35-4.47 (m, 1H), 3.11-3.18 (m, 3H), 1.33 (d, 6H). LC-MS: m/z 453.2 (M+H)⁺.

Compound 359—N²-isopropyl-6-(6-methylpyridin-2-yl)-N⁴-(3-(methylsulfonyl)phenyl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.60-9.03 (m, 1H), 8.31 (m, 1H), 7.70-8.05 (m, 2H), 7.81 (d, 1H), 7.57-7.63 (m, 2H), 7.45-7.47 (m, 1H), 4.39 (m, 1H), 3.12-3.19 (m, 3H), 2.67 (s, 3H), 1.34 (d, 6H). LC-MS: m/z 399.2 (M+H)⁺.

Compound 360—6-(6-ethynylpyridin-2-yl)-N²-isopropyl-N⁴-(3-(methylsulfonyl)phenyl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.89 (s, 1H), 8.56 (d, 1H), 8.15-8.19 (m, 1H), 7.71-7.95 (m, 4H), 4.45 (br., 1H), 4.03 (s, 1H), 3.18 (s, 3H), 1.39 (d, 6H). LC-MS: m/z 409.2 (M+H)⁺.

Compound 361—N²-isopropyl-6-(6-methoxypyridin-2-yl)-N⁴-(3-(methylsulfonyl)phenyl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.55-8.99 (m, 1H), 7.82-8.13 (m, 3H), 7.57-7.64 (m, 2H), 6.98 (d, 1H), 4.37-4.41 (m., 1H), 4.07 (s, 3H), 3.16 (s, 3H), 1.34 (d, 6H). LC-MS: m/z 414.9 (M+H)⁺, 436.9 (M+Na)⁺.

Compound 363—N²-(6-fluoropyridin-3-yl)-N⁴-neopentyl-6-(pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.82 (d, 1H), 8.47-8.54 (m, 1H), 8.40 (d, 1H), 8.14-8.17 (m, 1H), 7.83-7.88 (m., 1H), 7.45-7.52 (m, 1H), 7.10-7.20 (m, 1H), 6.93-6.99 (m, 1H), 5.40-5.77 (m, 1H), 3.31-3.49 (m, 2H), 1.00 (s, 9H). LC-MS: m/z 354.2 (M+H)⁺.

Compound 364—N²-isopropyl-6-(6-(methylamino)pyridin-2-yl)-N⁴-(3-(methylsulfonyl)phenyl)-1,3,5-triazine-2,4-diamine

¹H NMR (CDCl3) δ 10.00-10.31 (br., 1H), 8.61-8.82 (m, 1H), 7.53-8.82 (m, 5H), 6.95-7.02 (m, 1H), 4.34 (m., 1H), 3.07 (d, 6H), 1.31-1.37 (m, 6H). LC-MS: m/z 414.2 (M+H)⁺.

Compound 365—N²-isopropyl-N⁴-(3-(methylsulfonyl)phenyl)-6-(6-(prop-1-ynyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (Methanol-d4) δ 8.89 (s, 1H), 8.49 (d, 1H), 8.11 (t, 1H), 7.80-7.86 (m, 3H), 7.71-7.75 (m., 1H), 4.45 (m, 1H), 3.19 (s, 3H), 2.17 (d, 3H), 1.40 (d, 6H). LC-MS: m/z 423.0 (M+H)⁺.

Compound 366—6-(6-(difluoromethyl)pyridin-2-yl)-N²-isopropyl-N⁴-(3-(methylsulfonyl)phenyl)-1,3,5-triazine-2,4-diamine

¹H NMR (Methanol-d4) δ 8.88 (s, 1H), 8.78 (m, 1H), 8.35 (s, 1H), 8.10 (m, 1H), 7.82 (t, 2H), 7.71 (t, 1H), 6.70-7.10 (m., 1H), 4.30-4.50 (m, 1H), 3.17 (s, 3H), 1.39 (d, 6H). LC-MS: m/z 434.9 (M+H)⁺.

Compound 395—6-(6-(1,1-difluoroethyl)pyridin-2-yl)-N²-isopropyl-N⁴-(3-(methylsulfonyl)phenyl)-1,3,5-triazine-2,4-diamine

¹H NMR (Methanol-d4) δ 8.98 (s, 1H), 8.57 (d, 1H), 8.09 (t, 1H), 7.85 (d, 1H), 7.80 (m, 1H), 7.55-7.62 (m, 1H), 4.36-4.39 (m, 1H), 3.14-3.17 (m, 3H), 2.11 (t, 3H), 1.32 (d, 6H). LC-MS: m/z 449.3 (M+H)⁺. 471.3 (M+Na)⁺.

Compound 397—6-(6-cyclopropylpyridin-2-yl)-N²-isopropyl-N⁴-(3-(methylsulfonyl)phenyl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.97 (s, 1H), 8.21-8.2 (d, 1H), 7.76-7.80 (t, 2H), 7.55-7.61 (m, 2H), 7.25-7.27 (d, 1H), 4.35-4.38 (m, 1H), 3.13 (s, 3H), 2.23-2.28 (m, 1H), 1.31-1.32 (d, 6H), 1.02-1.12 (m, 4H). LC-MS: m/z 425.3 (M+H)⁺.

Compound 398—6-(6-aminopyridin-2-yl)-N²-(3,5-difluorophenyl)-N-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 7.66-7.70 (t, 1H), 7.56-7.60 (t, 1H), 7.49-7.51 (d, 2H), 6.70-6.73 (d, 1H), 6.53-6.57 (t, 1H), 4.21-4.24 (m, 1H), 1.18-1.31 (m, 6H). LC-MS: m/z 358.3 (M+H)⁺.

Example 3. Preparation of Additional Compounds of Formula I Wherein Ring A is Substituted Pyridin-2-yl

The compounds of this Example are prepared by general Scheme 3, set forth below.

Example 3, Step 1: Preparation of 6-chloro-pyridine-2-carboxylic acid methyl ester (10)

To a solution of 6-chloro-pyridine-2-carboxylic acid (48 g, 0.31 mol) in methanol (770 ml) was added concentrated HCl (6 ml). The mixture was stirred at 80° C. for 48 hours then concentrated to remove the volatile. The crude product was diluted with ethyl acetated and washed with Sat. NaHCO₃ solution. The organic layer was dried with anhydrous Na₂SO₄ and concentrated to give 6-chloro-pyridine-2-carboxylic acid methyl ester as a white solid.

LC-MS: m/z 172.0 (M+H)⁺.

The procedure set forth in Example 3, Step 1 was used to produce the following intermediates (10) using the appropriate starting material 9.

6-trifluoromethyl-pyridine-2-carboxylic acid methyl ester

LC-MS: m/z 206 (M+H)⁺. Example 3, Step 2: Preparation of 6-(6-chloropyridin-2-yl)-1,3,5-triazine-2,4-dione

To a solution of Na (32 g, 0.16 mol) in ethanol (500 mL) was added methyl 6-chloropicolinate (32 g, 0.16 mol) and biuret (5.3 g, 0.052 mol). The mixture was heated to reflux for 1 hour. Then concentrated to give residue which was poured to water and added Sat.NaHCO₃ solution to adjust pH to 7, the precipitated solid was collected by filtration and dried to give 6-(6-chloropyridin-2-yl)-1,3,5-triazine-2,4-dione as a white solid.

LC-MS: m/z 225 (M+H)⁺.

The procedure set forth in Example 3, Step 2 was used to produce the following intermediates (11) starting with appropriate intermediate 10.

6-(6-trifluoromethyl-pyridin-2-yl)-1H-1,3,5-triazine-2,4-dione as a pale white solid.

LC-MS: m/z 259 (M+H)⁺.

6-pyridin-2-yl-1H-1,3,5-triazine-2,4-dione

¹H NMR (DMSO-d4): δ 11.9-12.5 (s, 1H), 11.3-11.6 (s, 1H), 8.7-8.9 (m, 1H), 8.2-8.4 (m, 1H), 8.0-8.2 (m, 1H), 7.6-7.8 (m, 1H).

Example 3, Step 3: Preparation of 2,4-dichloro-6-(6-chloropyridin-2-yl)-1,3,5-triazine

To a solution of 6-(pyridin-2-yl)-1,3,5-triazine-2,4(1H,3H)-dione (3.0 g, 013 mol) in POCl₃ (48 mL) was added PCl₅ (23 g, 0.1 mol). The mixture was stirred at 100° C. for 2 hours then concentrated to remove the volatile. The residue was diluted with ethyl acetated and washed with Sat.NaHCO₃ solution. The organic layer was dried over anhydrous Na₂SO₄ and concentrated to give 2,4-dichloro-6-(6-chloropyridin-2-yl)-1,3,5-triazine as a brown solid.

LC-MS: ml/z 260.9 (M+H)⁺.

The procedure set forth in Example 3, Step 3 together with the appropriate starting intermediate 11 was used to produce the following intermediates (12).

2, 4-dichloro-6-(6-trifluoromethyl-pyridin-2-yl)-1,3,5-triazine as light yellow solid.

LC-MS: m/z 294.9 (M+H)⁺.

2,4-Dichloro-6-pyridin-2-yl-[1,3,5]triazine (1.0 g, 80%) as brown solid.

LC-MS: m/z 227.0 (M+H)⁺.

Example 3, Step 4: Preparation of 4-chloro-6-(6-chloropyridin-2-yl)-N-isopropyl-1, 3, 5-triazin-2-amine

To a solution of 2,4-dichloro-6-(pyridin-2-yl)-1,3,5-triazine (2.0 g, 0.0077 mol) in anhydrous THF (20 mL) was added isopropyl amine (0.45 g, 0.0077 mol). The mixture was stirred at room temperature for 1 hour. The mixture was quenched by water and extracted with ethyl acetate. The organic layer was dried over anhydrous Na₂SO₄ and concentrated to give 4-chloro-6-(6-chloropyridin-2-yl)-N-isopropyl-1,3,5-triazin-2-amine which was used directly in the next step.

LC-MS: m/z 221.1 (M+H)⁺.

The procedure set forth in Step 4 using the appropriate intermediate 12 and amine 6 was used to produce the following intermediates (13).

4-Chloro-6-(6-trifluoromethyl-pyridin-2-yl)-1, 3, 5 triazin-2-y]-isopropyl-anine

LC-MS: m/z 318.1 (M+H)⁺.

(4-Chloro-6-pyridin-2-yl-[1,3,5]triazin-2-yl)-isopropyl-amine

LC-MS: m/z 249.9 (M+H)⁺.

4-chloro-6-(6-chloropyridin-2-yl)-N-(oxetan-3-yl)-1,3,5-triazin-2-amine, which was used directly in the next step.

LC-MS: m/z 298.2 (M+H)⁺.

4-Chloro-6-(6-trifluoromethyl-pyridin-2-yl)-1,3,5 triazin-2-y]-oxetan-3-yl-amine, which was used directly in the next step.

LC-MS: m/z 332.1 (M+H)⁺.

4-chloro-N-((tetrahydrofuran-2-yl)-methyl)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazin-2-amine which was used directly in the next step.

LC-MS: 360.1 (M+H)⁺.

[4-Chloro-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazin-2-yl]-(3-oxa-bicyclo[3.1.0]hex-6-yl)-amine, which was used directly in the next step.

LC-MS: m/z 358.1 (M+H)⁺.

1-[4-Chloro-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazin-2-ylamino]-2-methyl-propan-2-ol

LC-MS: 348.0 (M+H)⁺.

Example 3, Step 5: Preparation of 6-(6-Chloro-pyridin-2-yl)-N-oxetan-3-yl-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine-Compound 356

To a solution of 4-chloro-6-(6-chloropyridin-2-yl)-N-(oxetan-3-yl)-1,3,5-triazin-2-amine (0.23 g, 0.78 mmol) in anhydrous dioxane (3 mL) was added 2-trifluoromethyl-pyridin-4-ylamine (0.13 g, 0.78 mmol), t-BuONa (0.15 g, 1.56 mmol) and Pd(dppf)Cl₂ (0.057 g, 0.078 mmol). The mixture was stirred at 80° C. under N₂ for 1 hour. The mixture was quenched by water and extracted with ethyl acetate. The organic layer was dried with anhydrous Na₂SO₄, concentrated and purified by a standard method to give 6-(6-chloro-pyridin-2-yl)-N-oxetan-3-yl-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine.

¹H NMR (METHANOL-d₄): δ 8.5 (m, 2H), 8.4 (m, 1H), 8.3-8.1 (m, 0.5H), 7.96 (m, 1H), 7.85 (m, 0.6H), 7.6 (m, 1H), 5.1-5.5 (m, 1H), 5.0 (m, 2H), 4.7 (m, 2H). LC-MS: m/z 424.2 (M+H)⁺. Additional compounds of Formula I set forth below were similarly produced following Scheme 3 utilizing the appropriate intermediates and reagents.

Compound 334—N²-isopropyl-6-phenyl-N⁴-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄): δ 8.65-8.75 (m, 2H), 8.5 (m, 2H), 8.15-8.3 (m, 0.5H), 8.0 (m, 1H), 7.82 (m, 0.6H), 4.2-4.6 (m, 1H), 1.3 (d, J=6.4 Hz, 6H). LC-MS: m/z 375.0 (M+H)⁺.

Compound 335—N²-isopropyl-6-(6-(trifluoromethyl)pyridin-2-yl)-N⁴-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄): δ 8.6 (m, 2H), 8.5 (m, 1H), 8.1-8.2 (m, 1H), 7.78 (m, 0.7H), 4.24-4.27 (m, 1H), 1.3 (d, J=6.8 Hz, 6H). LC-MS: m/z 444.3 (M+H)⁺.

Compound 336—N²-(oxetan-3-yl)-6-(pyridin-2-yl)-N⁴-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄): δ 8.7 (m, 1H), 8.46-8.52 (m, 3H), 7.89-8.23 (m, 2H), 7.6 (m, 1H), 5.15-5.55 (m, 1H), 5.0 (m, 2H), 4.7 (m, 2H). LC-MS: m/z 390.2 (M+H)⁺.

Compound 337—N²-(isoxazol-4-yl)-N⁴-(oxetan-3-yl)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄): δ 9.35-9.05 (m, 1H), 8.6-8.7 (m, 2H), 8.2 (m, 1H), 8.0 (m, 1H), 5.2-5.4 (m, 1H), 5.0 (m, 2H), 4.7-4.8 (d, J=6.4 Hz, 6H). LC-MS: m/z 343.2 (M+H)⁺.

Compound 345—N²-cyclobutyl-N⁴-(6-fluoropyridin-3-yl)-6-(pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ 10.11 (br.s., 1H), 8.75-8.69 (m, 2H), 8.38-8.32 (m, 2H), 8.26-8.06 (m, 1H), 7.98-7.94 (m, 1H), 7.56-7.52 (m, 1H), 7.19-7.11 (m, 1H), 4.65-4.39 (m, 1H), 2.31-2.27 (m, 2H), 2.09-2.02 (m, 2H), 1.70-1.67 (m, 2H). LC-MS: m/z 338.2 (M+H)⁺.

Compound 363—N²-(6-fluoropyridin-3-yl)-N⁴-neopentyl-6-(pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (CDCl₃) δ 8.82 (s., 1H), 8.53-8.41 (m, 1H), 8.41-8.39 (m, 1H), 8.17-8.09 (m, 1H), 7.88-7.83 (m, 1H), 7.49-7.42 (m, 1H), 7.25-7.15 (m, 1H), 6.99-6.92 (m, 1H), 5.76-4.90 (m, 1H), 3.48-3.31 (m, 2H), 1.01 (s, 9H). LC-MS: m/z 354.2 (M+H)⁺.

Compound 353—6-(6-chloropyridin-2-yl)-N²-isopropyl-N⁴-(pyrimidin-5-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄): δ 9.37 (m, 1H), 8.8 (m, 1H), 8.4 (m, 1H), 7.97 (m, 1H), 7.6 (m, 1H), 4.2-4.5 (m, 2H), 1.3 (m, 2H). LC-MS: m/z 390.2 (M+H)⁺.

Compound 354—6-(6-chloropyridin-2-yl)-N²-(2-chloropyridin-4-yl)-N⁴-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄): δ 8.41-8.44 (m, 1H), 8.17-8.22 (m, 2H), 7.96-8.0 (m, 1H), 7.62-7.66 (m, 2H), 4.2-4.6 (m, 1H), 1.35 (d, J=6.8 Hz, 6H). LC-MS: m/z 376.2 (M+H)⁺.

Compound 355—4-(4-(6-chloropyridin-2-yl)-6-(isopropylamino)-1,3,5-triazin-2-ylamino)picolinonitrile

¹H NMR (METHANOL-d₄): δ 8.55-8.7 (m, 3H), 8.0 (m, 2H), 7.65 (m, 1H), 4.6-4.25 (m, 1H), 1.35 (d, J=6.4 Hz, 6H). LC-MS: m/z 367.2 (M+H)⁺.

Compound 357—N²-(oxetan-3-yl)-N⁴-(thiazol-5-yl)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄): δ 9.19-8.79 (m, 2H), 8.50-8.40 (m, 1H), 8.25-8.19 (m, 1H), 7.93-7.81 (m, 1H), 5.21-5.06 (m, 1H), 5.02-4.90 (m, 1H), 4.44-4.38 (m, 1H), 3.83-3.72 (m, 2H). LC-MS: m/z 396.1 (M+H)⁺.

Compound 367—1-(4-(6-chloropyridin-2-yl)-6-(5-(trifluoromethyl)pyridin-3-ylamino)-1,3,5-triazin-2-ylamino)-2-methylpropan-2-ol

¹H NMR (METHANOL-d₄) δ 8.98 (s, 1H), 8.94 (s, 1H), 8.49 (s, 1H), 8.41-8.39 (m, 1H), 7.98-7.94 (s, 1H), 7.62-7.60 (m., 1H), 3.53 (s, 2H), 1.26 (s., 6H). LC-MS: m/z 440.2 (M+H)

Compound 368—1-(4-(6-chloropyridin-2-yl)-6-(2-fluoropyridin-4-ylamino)-1,3,5-triazin-2-ylamino)-2-methylpropan-2-ol

¹H NMR (METHANOL-d₄) δ 8.37-8.33 (m, 1H), 7.94-7.90 (m, 2H), 7.68 (s, 1H), 7.54-7.42 (m, 2H), 3.46 (s, 2H), 1.19 (s., 6H). LC-MS: m/z 390.2 (M+H)

Compound 377—N²-(2-fluoropyridin-4-yl)-N⁴-(oxetan-3-yl)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄): δ 8.67 (m, 1H), 8.2 (m, 1H), 7.8-8.05 (m, 3H), 7.5 (m, 1H), 5.15-5.4 (m, 1H), 5.0 (m, 2H), 4.75 (m, 2H). LC-MS: m/z 408 (M+H)⁺.

Compound 378—N²-(oxetan-3-yl)-6-(6-(trifluoromethyl)pyridin-2-yl)-N⁴-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄): δ 8.7 (m, 1H), 8.6-8.35 (m, 2H), 8.1-8.3 (m, 1.4H), 7.85-8.0 (m, 1.7H), 5.4-5.15 (m, 1H), 5.02 (m, 2H), 4.75 (m, 2H). LC-MS: m/z 458.2 (M+H)⁺.

Compound 379—N²-(oxetan-3-yl)-6-(6-(trifluoromethyl)pyridin-2-yl)-N⁴-(5-(trifluoromethyl)pyridin-3-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₆): δ 10.2-10.8 (m, 1H), 9.0-9.4 (m, 2H), 8.5-8.9 (m, 3H), 8.3 (m, 1H), 8.1 (m, 1H), 5.0-5.2 (m, 1H), 4.7 (m, 2H), 4.6 (m, 2H). LC-MS: m/z 458.2 (M+H)⁺.

Compound 380—N²-(6-fluoropyridin-3-yl)-N⁴-(oxetan-3-yl)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄): δ 8.5-8.7 (m, 2H), 8.3-8.55 (m, 2H), 8.2 (m, 1H), 7.97 (m, 1H), 7.0-7.15 (m, 1H), 5.1-5.4 (m, 1H), 5.0 (m, 2H), 4.7 (m, 2H). LC-MS: m/z 407 (M+H)⁺.

Compound 381—N²-(5-fluoropyridin-3-yl)-N⁴-(oxetan-3-yl)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄): δ 8.6-8.7 (m, 3H), 8.1-8.22 (m, 2H), 7.95 (m, 1H), 5.1-5.4 (m, 1H), 5.0 (m, 2H), 4.72 (m, 2H). LC-MS: m/z 407 (M+H)⁺.

Compound 382—5-(4-(6-chloropyridin-2-yl)-6-(isopropylamino)-1,3,5-triazin-2-ylamino)nicotinonitrile

¹H NMR (METHANOL-d₄) δ 9.12 (s, 1H), 8.95-8.77 (m, 2H), 8.71-8.67 (m, 1H), 8.56-8.51 (m, 1H), 8.19-8.15 (m, 1H), 7.88-7.86 (m, 1H), 4.60-4.29 (m, 1H), 1.40 (d, J=6.4 Hz, 6H) LC-MS: m/z 367.2 (M+H)⁺.

Compound 383—6-(6-chloropyridin-2-yl)-N²-(5-fluoropyridin-3-yl)-N⁴-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.88 (s, 1H), 8.52-8.49 (m, 2H), 8.32-8.30 (m, 1H), 8.20-8.16 (m, 1H), 7.89-7.87 (m, 1H), 4.35-4.31 (m, 1H), 1.40 (d, J=6.4 Hz, 6H). LC-MS: m/z 360.1 (M+H)⁺.

Compound 384—6-(6-chloropyridin-2-yl)-N²-(2-fluoropyridin-4-yl)-N⁴-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.45-8.41 (m, 1H), 8.02-7.96 (m, 2H), 7.79 (s, 1H), 7.63-7.61 (m, 1H), 7.54-7.49 (m, 1H), 4.47-4.24 (m, 1H), 1.32 (d, J=6.4 Hz, 6H). LC-MS: m/z 360.1 (M+H)⁺.

Compound 385—1-(4-(6-fluoropyridin-3-ylamino)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazin-2-ylamino)-2-methylpropan-2-ol

¹H NMR (METHANOL-d₄) δ 8.63-8.75 (m, 2H), 8.42-8.56 (m, 1H), 8.26-8.30 (q, J=8, 1H), 8.04-8.06 (d, J=7.2 Hz, 1H), 7.16-7.19 (m, 1H), 3.60-3.68 (d, J=32.4 Hz, 2H), 1.35 (s., 6H). LC-MS: m/z 424.2 (M+H)⁺.

Compound 386—N²-isopropyl-6-(6-(trifluoromethyl)pyridin-2-yl)-N⁴-(5-(trifluoromethyl)pyridin-3-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 9.04-8.96 (m, 2H), 8.68-8.64 (m, 1H), 8.49-8.47 (m, 1H), 8.20-8.16 (m, 1H), 7.96-7.94 (d, J=8.0 Hz, 1H), 4.60-4.20 (m, 1H), 1.31 (d, J=6.4 Hz, 6H). LC-MS: m/z 444.2 (M+H)⁺.

Compound 388—1-(4-(6-chloropyridin-2-yl)-6-(6-fluoropyridin-3-ylamino)-1,3,5-triazin-2-ylamino)-2-methylpropan-2-ol

¹H NMR (METHANOL-d₄) δ 8.58 (s, 1H), 8.42-8.31 (m, 2H), 8.00-7.98 (m, 1H), 7.63-7.61 (m, 1H), 7.09-7.08 (m, 1H), 3.52 (s., 2H), 1.27 (s., 6H). LC-MS: m/z 390.2 (M+H)

Compound 389—1-(4-(6-chloropyridin-2-yl)-6-(2-(trifluoromethyl)pyridin-4-ylamino)-1,3,5-triazin-2-ylamino)propan-2-ol

¹H NMR (METHANOL-d₄) δ 8.46-7.92 (m, 3H), 7.91-7.52 (m, 3H), 3.98-3.88 (m, 1H), 3.52-3.33 (m, 2H), 1.16 (t, J=8.0 Hz, 6H). LC-MS: m/z 426.2 (M+H).

Compound 390—1-(4-(6-chloropyridin-2-yl)-6-(5-fluoropyridin-3-ylamino)-1,3,5-triazin-2-ylamino)-2-methylpropan-2-ol

¹H NMR (METHANOL-d₄) δ 8.72 (s, 1H), 8.63-8.43 (m, 2H), 8.16-8.16 (m, 1H), 8.03-7.99 (m, 1H), 7.65-7.64 (m, 1H), 3.57 (s, 2H), 1.30 (s, 6H). LC-MS: m/z 390.2 (M+H).

Compound 391—1-(4-(6-chloropyridin-2-yl)-6-(2-(trifluoromethyl)pyridin-4-ylamino)-1,3,5-triazin-2-ylamino)-2-methylpropan-2-ol

¹H NMR (METHANOL-d₄) δ 8.62-8.17 (m, 3H), 8.00-7.95 (m, 1H), 7.84-7.83 (m, 1H), 7.63-7.61 (m, 1H), 3.56 (s, 2H), 1.28 (s, 6H). LC-MS: m/z 440.3 (M+H).

Compound 393—6-(6-chloropyridin-2-yl)-N²-(2-fluoropyridin-4-yl)-N⁴-(oxetan-3-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₆): δ 10.6-10.8 (m, 2H), 8.8-9.2 (m, 1H), 8.3-8.5 (m, 1H), 7.9-8.2 (m, 2.4H), 7.6-7.8 (m, 2.5H), 5.0-5.2 (m, 1H), 4.75 (m, 2H), 4.6 (m, 2H). LC-MS: m/z 373 (M+H)⁺.

Compound 394—6-(6-chloropyridin-2-yl)-N²-isopropyl-N⁴-(5-(trifluoromethyl)pyridin-3-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 9.15-8.70 (s, 2H), 8.49 (s, 1H), 8.43-8.38 (m, 1H), 7.98-7.93 (m, 1H), 7.60-7.58 (m, 1H), 4.50-4.18 (m, 1H), 1.30 (d, J=8 Hz, 6H). LC-MS: m/z 410.2 (M+H)⁺.

Compound 396—6-(6-chloropyridin-2-yl)-N²-isopropyl-N⁴-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.86-8.67 (br.s, 1H), 8.48-8.42 (m, 2H), 8.23-7.61 (m, 3H), 4.53-4.13 (m, 1H), 1.32 (s, 6H). LC-MS: m/z 410.2 (M+H)⁺.

Compound 399—6-(6-chloropyridin-2-yl)-N²-(5-fluoropyridin-3-yl)-N⁴-isobutyl-1,3,5-triazine-2,4-diamine

1H NMR (METHANOL-d₄) δ 8.67-8.41 (m, 3H), 8.13-8.10 (m, 1H), 8.00-7.97 (m, 1H), 7.96-7.62 (m, 1H), 3.42-3.31 (m., 2H), 2.04-2.01 (m., 1H), 1.00 (dd, J=4, 400 MHz, 6H). LC-MS: m/z 374.2 (M+H)⁺.

Compound 400—N²-(3-(azetidin-1-ylsulfonyl)phenyl)-6-(6-chloropyridin-2-yl)-N⁴-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.93 (s, 1H), 8.47-8.45 (m, 1H), 7.98 (m, 1H), 7.63-7.61 (m, 1H), 7.56 (m, 2H), 7.50-7.48 (m, 1H), 4.35 (m, 1H), 3.82-3.78 (m., 4H), 2.1-2.06 (m., 2H), 1.32-1.30 (d, J=8 Hz, 6H). LC-MS: m/z 459.9 (M+H)⁺.

Compound 401—5-(4-(isopropylamino)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazin-2-ylamino)nicotinonitrile

¹H NMR (METHANOL-d₄) δ: 8.96-8.84 (m, 2H), 8.59-8.54 (m, 1H), 8.42-8.397 (m, 1H), 8.11-8.07 (m, 1H), 7.87-7.85 (d, J=8.0 Hz, 1H), 4.47-4.12 (m, 1H), 1.21 (d, J=6.8 Hz, 6H). LC-MS: m/z 401.2 (M+H)⁺.

Compound 402—N²-(2-fluoropyridin-4-yl)-N⁴-((tetrahydrofuran-2-yl)methyl)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.69 (t, J=7.4 Hz, 1H), 8.22 (t, J=8.0 Hz, 1H), 8.04-7.98 (m, 2H), 7.84 (s, 1H), 7.53 (dd, J=10.8 Hz, 5.2 Hz, 1H), 4.23-4.19 (m, 1H), 3.99-3.96 (m, 1H), 3.83-3.78 (m, 1H), 3.70-3.63 (m, 2H), 2.12-2.08 (m, 1H), 2.04-1.95 (m, 2H), 1.79-1.72 (m, 1H). LC-MS: m/z 436.2 (M+H)⁺.

Compound 403—4-(4-((tetrahydrofuran-2-yl)methylamino)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazin-2-ylamino)picolinonitrile

¹H NMR (METHANOL-d₄) δ: 8.68 (t, J=7.2 Hz, 1H), 8.59 (d, J=16.8 Hz, 1H), 8.46 (dd, J=14.0 Hz, 5.8 Hz, 2H), 8.21 (t, J=7.8 Hz, 1H), 7.99-7.95 (m, 2H), 4.23-4.20 (m, 1H), 3.99-3.93 (m, 1H), 3.84-3.78 (m, 1H), 3.69-3.62 (m, 2H), 2.13-2.09 (m, 1H), 2.05-1.98 (m, 2H), 1.79-1.73 (m, 1H). LC-MS: m/z 443.3 (M+H)⁺.

Compound 404—4-(4-(isopropylamino)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazin-2-ylamino)picolinonitrile

¹H NMR (METHANOL-d₄) δ: 8.72-8.65 (m, 1H), 8.59 (s, 1H), 8.48 (dd, J=10.4 Hz, 6.0 Hz, 1H), 8.22 (t, J=7.8 Hz, 1H), 7.99-7.94 (m, 2H), 4.49-4.25 (m, 1H), 1.31 (d, J=7.6 Hz, 6H). LC-MS: m/z 401.2 (M+H)⁺.

Compound 405—5-(4-(2-hydroxy-2-methylpropylamino)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazin-2-ylamino)nicotinonitrile

¹H NMR (METHANOL-d₄) δ 9.03-9.12 (m, 1H), 8.70-8.78 (m, 3H), 8.37-8.45 (m, 1H), 8.18-8.25 (d, J=7.2 Hz, 1H), 3.62 (s, 2H), 1.35 (s, 6H). LC-MS: m/z 431.1 (M+H)⁺.

Compound 406—2-methyl-1-(4-(6-(trifluoromethyl)pyridin-2-yl)-6-(5-(trifluoromethyl)pyridin-3-ylamino)-1,3,5-triazin-2-ylamino)propan-2-ol

¹H NMR (METHANOL-d₄) δ 9.00-9.18 (m, 2H), 8.69-8.71 (m, 1H), 8.51-8.54 (m, 1H), 8.20-8.22 (m, 1H), 7.98-8.00 (m, 1H), 3.57-3.65 (d, J=30.8 Hz, 2H), 1.30 (s, 6H). LC-MS: m/z 474.2 (M+H)⁺.

Compound 407—1-(4-(5-fluoropyridin-3-ylamino)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazin-2-ylamino)-2-methylpropan-2-ol

¹H NMR (METHANOL-d₄) δ 8.92 (s, 1H), 8.81-8.83 (m, 1H), 8.53-8.58 (m, 3H), 8.26-8.28 (m, 1H), 3.64 (s, 2H), 1.35 (s, 6H). LC-MS: m/z 424.2 (M+H)⁺.

Compound 408—4-(4-(isobutylamino)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazin-2-ylamino)picolinonitrile

¹H NMR (DMSO-d₄) δ 10.7 (s, 1H), 8.52-8.70 (m, 4H), 8.30-8.34 (m, 1H), 8.11-8.13 (m, 1H), 7.93-8.05 (m, 1H), 3.21-3.24 (q, J=6.4 Hz, 2H), 1.95-2.00 (m, 1H), 0.96-0.98 (q, J=3.6 Hz, 6H). LC-MS: m/z 415.3 (M+H)⁺.

Compound 409—2-methyl-1-(4-(6-(trifluoromethyl)pyridin-2-yl)-6-(2-(trifluoromethyl)pyridin-4-ylamino)-1,3,5-triazin-2-ylamino)propan-2-ol

¹H NMR (METHANOL-d₄) δ 8.62-8.68 (m, 2H), 847-8.50 (m, 1H), 8.18-8.21 (m, 1H), 7.96-7.98 (m, 1H), 7.82-7.84 (m, 1H), 3.56-3.63 (d, J=28 Hz, 2H), 1.30 (s, 6H). LC-MS: m/z 474.3 (M+H)⁺.

Compound 410—6-(6-chloropyridin-2-yl)-N²-(6-fluoropyridin-3-yl)-N⁴-(oxetan-3-yl)-1,3,5-triazine-2,4-diamine

1H NMR (METHANOL-d₄) δ 8.50-8.31 (m, 3H), 7.89-7.86 (m, 1H), 7.53-7.51 (m, 1H), 7.02-7.00 (m, 1H), 5.02-4.90 (m., 1H), 4.88-4.84 (m., 2H), 4.61-4.59 (m, 2H)

LC-MS: m/z 374.2 (M+H)⁺.

Compound 411—N²-(3-oxabicyclo[3.1.0]hexan-6-yl)-N⁴-(5-fluoropyridin-3-yl)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

1H NMR (DMSO-d₆) δ 10.04-10.06 (m, 1H), 8.69-8.91 (m, 1H), 8.47-8.58 (m, 2H), 8.32 (t, J=8.0 Hz, 1H), 8.19-8.24 (m., 1H), 8.10-8.12 (m, 1H), 3.98 (d., J=8.0 Hz, 2H), 3.69 (d., J=8.0 Hz, 2H), 2.57-2.61 (m, 1H), 1.97 (s, 2H). LC-MS: m/z 434.2 (M+H)⁺.

Example 4. Preparation of Compounds of Formula I Wherein Ring A is Substituted Phenyl

The compounds of this Example are prepared by general Scheme 4, set forth below.

Example 4, Step 1: Preparation of 4,6-dichloro-N-isopropyl-1,3,5-triazin-2-amine

To a solution of 2,4,6-trichloro-1,3,5-triazine (4.0 g, 0.0217 mol) in THF (25 mL) was added isopropyl amine (1.27 g, 0.0217 mmol) at 0° C. The mixture was stirred at room temperature for 12 hours. The mixture was adjusted pH 7 by aq NaHCO₃ and extracted with ethyl acetate (100 mL*2). The combined organic layer was dried over Na₂SO₄, concentrated and purified by column chromatography to give 4,6-dichloro-N-isopropyl-1,3,5-triazin-2-amine as a colorless oil.

¹H NMR (CDCl₃) δ 1.24-1.27 (m, 6H), 4.21-4.26 (m, 1H), 5.68 (br s, 1H).

The following intermediates (13) were prepared following the procedure of Step 1 using the appropriate amine 6.

4,6-dichloro-N-(oxetan-3-yl)-1,3,5-triazin-2-amine, which was directly used in the next step.

¹H NMR (CDCl₃) δ 1.71-1.83 (m, 2H), 1.90-2.04 (m, 2H), 2.37-2.46 (m, 2H), 4.46-4.56 (m, 1H), 6.04 (br. 1H).

1-(4,6-Dichloro-[1,3,5]triazin-2-ylamino)-2-methyl-propan-2-ol, which was directly used in the next step.

LCMS: m/z 237.0 (M+H)⁺.

4,6-dichloro-N-isobutyl-1,3,5-triazin-2-amine, which was directly used in the next step.

¹H NMR (CDCl₃) δ 0.85 (d, J=8.6 Hz, 6H), 1.75-1.94 (m, 1H), 3.30-3.33 (m, 2H), 6.29 (br, 1H).

Example 4, Step 2: Preparation of 1-[4-chloro-6-(2-fluoro-phenyl)-[1,3,5]triazin-2-ylamino]-2-methyl-propan-2-ol

To a mixture of 4,6-dichloro-N-isopropyl-1,3,5-triazin-2-amine (1.0 g, 4.83 mmol), 3-fluorophenylboronic acid (0.671 g, 0.00483 mol) and Cs₂CO₃ (3.15 g, 0.00966 mol) in dioxane/water (12 mL/2.4 mL) was added Pd(PPh₃)₄ (0.56 g, 483 mmol). The mixture was heated to 80° C. for 2 hours. The mixture was concentrated and purified by SiO₂ chromatography to give 1-[4-chloro-6-(2-fluoro-phenyl)-[1,3,5] triazin-2-ylamino]-2-methyl-propan-2-ol as a white solid.

LCMS: m/z 297.1 (M+H)⁺.

Additional intermediates 15 were prepared by the method of Example 4, Step 2 using the appropriate boronic acid 14 and the appropriate starting intermediate 13.

[4-chloro-6-(3-chloro-phenyl)-[1,3,5]triazin-2-yl]-isopropyl-amine

LCMS: m/z 282.9 (M+H)⁺.

4-chloro-6-(2-fluorophenyl)-N-isopropyl-1,3,5-triazin-2-amine

LCMS: m/z 266.8 (M+H)⁺.

4-chloro-6-(2-chlorophenyl)-N-isopropyl-1,3,5-triazin-2-amine

LCMS: m/z 282.8 (M+H)⁺.

4-chloro-6-(3-fluorophenyl)-N-isopropyl-1,3,5-triazin-2-amine

LCMS: m/z 266.9 (M+H)⁺.

[3-(4-Chloro-6-isopropylamino-[1,3,5] triazin-2-yl)-phenyl]-carbamic acid tert-butyl ester

LCMS: m/z 364.2 (M+H)⁺.

[4-Chloro-6-(3-methoxy-phenyl)-[1,3,5]triazin-2-yl]-isopropyl-amine

LCMS: m/z 279.1 (M+H)⁺.

Example 4, Step 3 (Procedure A): Preparation of Compound 227—6-(2-fluorophenyl)-N²-isopropyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

A mixture of 4-chloro-6-(2-fluorophenyl)-N-isopropyl-1,3,5-triazin-2-amine (290 mg, 1.1 mmol), pyridine-4-amine (103 mg, 1.1 mmol), CsF (554 mg, 2.2 mmol) and DIPEA (0.425 g, 3.3 mmol) in DMSO (4 mL) was heated to 80° C. for 2 hours. The mixture was filtered and purified by a standard method to give 6-(2-fluorophenyl)-N²-isopropyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine.

¹H NMR (METHANOL-d₄) δ: 8.32 (t, J=6.2 Hz, 2H), 8.12-8.03 (m, 1H), 7.89 (t, J=6.2 Hz, 2H), 7.54-7.49 (m, 1H), 7.27 (t, J=7.6 Hz, 1H), 7.23-7.18 (m, 1H), 4.35-4.23 (m, 1H), 1.30-1.26 (m, 6H). LC-MS: m/z 325.0 (M+H)⁺.

The following compound was also made using the procedure of Step 3 and the appropriate amine 4.

Compound 226—6-(2-chlorophenyl)-N²-isopropyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.31 (t, J=6.2 Hz, 2H), 7.87 (t, J=6.2 Hz, 2H), 7.74-7.65 (m, 1H), 7.50-7.37 (m, 3H), 4.31-4.26 (m, 1H), 1.30-1.24 (m, 6H). LC-MS: m/z 341.0 (M+H)⁺.

Example 4, Step 3 (Procedure B): Compound 317—N²-cyclobutyl-6-(2-fluorophenyl)-N⁴-(3-(methylsulfonyl)phenyl)-1,3,5-triazine-2,4-diamine

A mixture of [4-chloro-6-(2-fluoro-phenyl)-[1,3,5]triazin-2-yl]-cyclobutyl-amine (150 mg, 0.538 mmol) and 3-methanesulfonyl-phenylamine (111 mg, 0.648 mmol) in anhydrous THF (10 mL) was stirred at 80° C. for 8 hrs. TLC (petroleum ether/ethyl acetate 10/1) indicated the reaction was complete and water was added. The mixture was extracted with ethyl acetate and the organic layer was washed with brine, dried over sodium sulfate. Filtered and the filtrate was concentrated in vacuo to give crude N-cyclobutyl-6-(2-fluoro-phenyl)-N′-(3-methane-sulfonyl-phenyl)-[1,3,5]triazine-2,4-diamine, which was purified a standard method to give pure N-cyclobutyl-6-(2-fluoro-phenyl)-N′-(3-methanesulfonyl-phenyl)-[1,3,5]triazine-2,4-diamine.

¹H NMR (METHANOL-d₄) δ: 9.00-8.61 (m, 1H), 8.16-7.76 (m, 1H), 7.62-7.52 (m, 3H), 7.30-7.18 (m, 2H), 4.67-4.61 (m, 1H), 3.16 (s, 3H), 2.52-2.38 (m, 2H), 2.10-2.01 (m, 2H), 1.88-1.76 (m, 2H). LC-MS: m/z 414.3 (M+H)⁺.

Example 4, Step 3 (Procedure C): Synthesis of Compound 318—N-Cyclobutyl-6-(2-fluoro-phenyl)-N′-(5-fluoro-pyridin-3-yl)-[1,3,5]triazine-2,4-diamine

A mixture of [4-chloro-6-(2-fluoro-phenyl)-[1,3,5]triazin-2-yl]-cyclobutyl-amine (300 mg, 1.08 mmol), 5-fluoro-pyridin-3-ylamine (145 mg, 1.29 mmol) Pd(dppf)Cl₂ (80 mg, 0.11 mmol) and t-BuONa (208 mg, 2.17 mmol) in dioxane (15 mL) was stirred at 80° C. under N₂ for 2 hrs. Cooled to room temperature and water was added. Extracted with ethyl acetate and the organic layer was washed with brine, dried over sodium sulfate and filtered. The filtrate was concentrated in vacuo and the residue was purified by a standard method to obtain N-cyclobutyl-6-(2-fluoro-phenyl)-N′-(5-fluoro-pyridin-3-yl)-[1,3,5]triazine-2,4-diamine.

¹H NMR (METHANOL-d₄) δ: 8.73-8.44 (m, 2H), 8.08 (d, J=13.1 Hz, 2H), 7.53 (br.s., 1H), 7.28-7.19 (m, 2H), 4.58-4.51 (m, 1H), 2.42 (br.s., 2H), 2.09 (t, J=9.6 Hz, 2H), 1.80 (br.s., 2H). LC-MS: m/z 355.2 (M+H)⁺.

The following compounds were analogously made according to Example 4, Step 3 (procedure C) using the appropriate intermediate 15 and the appropriate amine 4

Compound 184—6-(3-fluorophenyl)-N²-isopropyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.35-8.31 (m, 2H), 8.26-8.20 (m, 1H), 8.10 (t, J=8.9 Hz, 1H), 7.90 (t, J=6.9 Hz, 2H), 7.55-7.47 (m, 1H), 7.30-7.24 (m, 1H), 4.43-4.24 (m, 1H), 1.30 (d, J=6.9 Hz, 6H). LC-MS: m/z 325.0 (M+H)⁺.

Compound 185—6-(3-chlorophenyl)-N²-isopropyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.38-8.30 (m, 4H), 7.91-7.87 (m, 2H), 7.53-7.43 (m, 2H), 4.41-4.23 (m, 1H), 1.30 (d, J=6.2 Hz, 6H). LC-MS: m/z 340.9 (M+H)⁺.

Compound 319—1-(4-(2-fluorophenyl)-6-(2-(trifluoromethyl)pyridin-4-ylamino)-1,3,5-triazin-2-ylamino)-2-methylpropan-2-ol

¹H NMR (METHANOL-d₄) δ: 8.65 (s, 1H), 8.49-8.38 (m, 1H), 8.19-7.85 (m, 2H), 7.62-7.52 (m, 1H), 7.32-7.22 (m, 2H), 3.58-3.56 (m, 2H), 1.29-1.27 (m, 6H). LC-MS: m/z 423.3 (M+H)⁺.

Compound 392—1-(4-(2-fluorophenyl)-6-(5-(trifluoromethyl)pyridin-3-ylamino)-1,3,5-triazin-2-ylamino)-2-methylpropan-2-ol

¹H NMR (METHANOL-d₄): δ 8.8-9.1 (m, 2H), 8.48 (m, 1H), 8.1 (m, 1H), 7.5 (m, 1H), 7.2-7.3 (m, 2H), 3.5 (m, 2H), 1.25 (m, 6H). LC-MS: m/z 428.3 (M+H)⁺.

Compound 320—6-(2-fluorophenyl)-N²-(5-fluoropyridin-3-yl)-N⁴-isobutyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.64-8.48 (m, 2H), 8.10-8.04 (m, 2H), 7.55-7.51 (m, 1H), 7.29 (t, J=7.6, 1H), 7.29 (t, J=11.0, 1H), 3.32 (br.s., 2H), 2.03-1.96 (m, 1H), 1.03-0.96 (m, 6H).

LC-MS: m/z 357.2 (M+H)⁺.

Compound 321—5-(4-(2-fluorophenyl)-6-(isopropylamino)-1,3,5-triazin-2-ylamino)nicotinonitrile

¹H NMR (DMSO-d₆) δ: 10.25-10.14 (m, 1H), 9.14 (t, J=2.40, 1H), 8.89-8.79 (m, 1H), 8.62-8.61 (m, 1H), 8.04-7.97 (m, 2H), 7.59-7.56 (m, 1H), 7.36-7.31 (m, 1H), 4.25-4.13 (m, 1H), 1.24-1.21 (m, 6H). LC-MS: m/z 350.2 (M+H)⁺.

Compound 369—4-(4-(2-fluorophenyl)-6-(isopropylamino)-1,3,5-triazin-2-ylamino)picolinonitrile

¹H NMR (METHANOL-d₄) δ 8.61-8.59 (m, 1H), 8.48-8.44 (m, 1H), 8.16-8.13 (m, 1H), 7.98-7.96 (m, 1H), 7.57-7.54 (m, 1H), 7.32-7.23 (m., 2H), 4.29-4.27 (m., 2H), 3.05 (s., 1H), 1.16 (dd, J=4, 400 MHz, 6H). LC-MS: m/z 350.2 (M+H)⁺.

Compound 370—6-(2-fluorophenyl)-N²-isopropyl-N⁴-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.65-8.64 (m, 2H), 8.22-8.18 (m, 1H), 7.90-7.89 (m, 1H), 7.72 (m, 2H), 7.45-7.35 (m., 2H), 4.38-4.35 (m., 1H), 1.39 (dd, J=4, 400 MHz, 6H). LC-MS: m/z 393.0 (M+H)⁺.

Compound 371—6-(2-fluorophenyl)-N²-(2-fluoropyridin-4-yl)-N⁴-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.20-8.15 (m, 2H), 7.75-7.59 (m, 2H), 7.45-7.38 (m, 3H), 4.37-4.35 (m., 1H), 1.37 (dd, J=4, 400 MHz, 6H). LC-MS: m/z 342.9 (M+H)⁺.

Compound 372—6-(2-fluorophenyl)-N²-isopropyl-N⁴-(5-(trifluoromethyl)pyridin-3-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 9.31-8.77 (m, 3H), 8.21 (m, 1H), 7.79 (m, 1H), 7.47-7.41 (m., 2H), 4.33-4.32 (m, 1H), 1.37 (dd, J=4, 400 MHz, 6H). LC-MS: m/z 393.0 (M+H)⁺.

Compound 374—6-(2-fluorophenyl)-N²-(5-fluoropyridin-3-yl)-N⁴-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.69-8.61 (m, 2H), 8.12-8.05 (m, 2H), 7.57-7.52 (m, 1H), 7.31-7.21 (m., 2H), 4.28-4.25 (m, 1H), 1.31 (dd, J=4, 400 MHz, 6H). LC-MS: m/z 343.2 (M+H)⁺.

Compound 387—6-(2-fluorophenyl)-N²-(6-fluoropyridin-3-yl)-N⁴-isopropypyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.61-8.57 (m, 1H), 8.42-8.37 (m, 1H), 8.04-8.00 (m, 1H), 7.55-7.51 (m., 1H), 7.30-7.05 (m, 3H), 4.26-4.23 (m, 1H), 1.29 (dd, J=4, 400 MHz, 6H). LC-MS: m/z 342.9 (M+H)⁺.

Preparation of 1-[4-(3-Amino-phenyl)-6-(pyridin-4-ylamino)-[1,3,5]triazin-2-yl-amino]-2-methyl-propan-2-ol Compound 327—

To a mixture of 1-[4-(3-N-(BOC-amino)-phenyl)-6-(pyridin-4-ylamino)-[1,3,5]triazin-2-ylamino]-2-methyl-propan-2-ol (100.2 mg, 0.24 mmol) in ethyl acetate (1 mL) was added HCl/ethyl acetate (4 mL) at 0° C. under N₂. The mixture was stirred at r.t. for 2 hours. TLC (petroleum ether/ethyl acetate=3:1) showed that the reaction was complete. The mixture was concentrated to give a residue, which was purified by a standard method to give 1-[4-(3-amino-phenyl)-6-(pyridin-4-ylamino)-[1,3,5]triazin-2-ylamino]-2-methyl-propan-2-ol. ¹H NMR (METHANOL-d₄) δ: 8.44-8.40 (m, 2H), 8.17-8.12 (m, 2H), 7.83-7.72 (m, 2H), 7.22 (t, J=7.6 Hz, 2H), 6.92 (d, J=7.6 Hz, 2H), 4.45-4.26 (m, 1H), 1.31 (d, J=6.5 Hz, 6H). LC-MS: m/z 322.2 (M+H)⁺.

Preparation of 3-[4-Isopropylamino-6-(pyridin-4-ylamino)-[1,3,5]triazin-2-yl]-phenol Compound 328—

To a mixture of N-isopropyl-6-(3-methoxy-phenyl)-N′-pyridin-4-yl-[1,3,5]triazine-2,4-diamine (200 mg, 0.6 mmol) in DCM (10 mL) was added BBr₃ (60 mg, 0.6 mol) at −78° C. under N₂. The mixture was allowed to warm to r.t. and stirred for 90 min. before pouring to water (2 mL). After stirring for 20 min. to the mixture was added NaHCO₃ to adjust pH to 7 and extracted with ethyl acetate. The organic layer was dried over sodium sulphate and concentrated to give a residue, which was purified by a standard method to give 3-[4-isopropylamino-6-(pyridin-4-ylamino)-[1,3,5]triazin-2-yl]-phenol.

¹H NMR (DMSO-d₆) δ: 11.12-11.05 (m, 1H), 9.72 (br.s., 1H), 8.67-8.60 (m, 2H), 8.38-8.31 (m, 2H), 8.15-8.00 (m, 1H), 7.82-7.74 (m, 2H), 7.32 (t, J=8.2 Hz, 1H), 7.00 (d, J=8.2 Hz, 1H), 4.433-4.17 (m, 1H), 1.26-1.22 (m, 6H). LC-MS: m/z 323.2 (M+H)⁺.

Example 5. Preparation of Compounds of Formula I Wherein Ring A and Ring B are Phenyl

The compounds of this Example are prepared by general Scheme 5, set forth below.

Example 5 Step 2: Preparation of 4-chloro-N,6-diphenyl-1,3,5-triazin-2-amine

To a solution of 2,4-dichloro-6-phenyl-1,3,5-triazine (1 g, 4.4 mol) in acetone (10 mL) was added dropwise a solution of aniline (0.41 g, 4.4 mol) in acetone (2 mL) at 0° C. via syringe under N₂. After the addition, the mixture was stirred at 0° C. under N₂ for 4 hrs. The reaction mixture was adjusted to pH 7 with saturated NaHCO₃. The cake was dissolved in ethyl acetate (500 ml), dried over anhydrous Na₂SO₄, concentrated and purified via silica gel chromatography to give 4-chloro-N,6-diphenyl-1,3,5-triazin-2-amine as a white solid.

¹H NMR (CDCl3) δ: 8.42 (d, J=7.6 Hz, 1H), 8.33 (d, J=7.6 Hz, 1H), 7.57-7.43 (m, 3H), 5.57-5.49 (m, 1H), 4.42-4.24 (m, 1H), 1.31-1.23 (m, 6H).

Example Step 3: Preparation of 2,6-diphenyl-N⁴-(tetrahydrofuran-3-yl)-1,3,5-triazine-2,4-diamine tetrahydrofuran-3-amine Compound 203—

To a solution of (4-chloro-6-phenyl-[1,3,5]triazin-2-yl)-phenyl-amine (150 mg, 0.532 mmol) in anhydrous THF (5 mL) was added a solution of 1-amino-2-methyl-propan-2-ol (71 mg, 0.796 mmol) in THF (2 mL) via syringe at room temperature and the result mixture was stirred at room temperature for 16 hrs. The reaction was quenched by water (15 mL) and extracted with ethyl acetate. The organic layer was dried over Na₂SO₄, concentrated and purified by a standard method to give pure 2-methyl-1-(4-phenyl-6-phenylamino-[1,3,5]triazin-2-yl-amino)-propan-2-ol.

¹H NMR (METHANOL-d₄) δ: 8.35 (t, J=9.6 Hz, 2H), 7.74 (d, J=8.2 Hz, 2H), 7.53-7.43 (m, 3H), 7.31 (t, J=5.5 Hz, 2H), 7.03 (t, J=7.6 Hz, 1H), 3.56-3.47 (m, 2H), 1.26 (s, 6H). LC-MS: m/z 336.2 (M+H)⁺.

Other compounds were produced following Example 5, Step 3 using the appropriate amine 6.

Compound 174—N²,6-diphenyl-N⁴-(tetrahydrofuran-3-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.39 (br.s., 1H), 8.35 (d, J=6.9 Hz, 1H), 7.75 (d, J=7.6 Hz, 3H), 7.52-7.43 (m, 3H), 7.31 (br.s., 2H), 7.02 (t, J=7.6 Hz, 1H), 4.60 (br.s., 1H), 4.05-3.95 (m, 2H), 3.89-3.83 (m, 1H), 3.76 (dd, J=8.9, 3.4 Hz, 1H), 2.34-2.29 (m, 1H), 2.04-1.97 (m, 1H). LC-MS: m/z 333.9 (M+H)⁺.

Compound 175—N²-(oxetan-3-yl)-N⁴,6-diphenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.35 (d, J=7.2 Hz, 2H), 7.71 (br.s., 2H), 7.51-7.41 (m, 3H), 7.30 (br.s., 2H), 7.02 (t, J=7.2 Hz, 1H), 5.25-5.10 (m, 1H), 4.93 (br.s., 2H), 4.69 (br.s., 2H). LC-MS: m/z 320.0 (M+H)⁺.

Compound 176—N²-(3-methyloxetan-3-yl)-N⁴,6-diphenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.35 (d, J=7.6 Hz, 2H), 7.70 (br, 2H), 7.52-7.42 (m, 3H), 7.31 (t, J=7.6 Hz, 2H), 7.06 (br.s., 1H), 4.88 (br.s., 2H), 4.52-4.88 (br.s., 2H), 1.77 (s, 3H). LC-MS: m/z 334.0 (M+H)⁺.

Compound 225—N²-(2-methoxyethyl)-N⁴,6-diphenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.42-8.34 (m, 2H), 7.75 (d, J=6.9 Hz, 2H), 7.54-7.44 (m, 3H), 7.32 (t, J=7.6 Hz, 2H), 7.04 (t, J=7.1 Hz, 1H), 3.7-3.58 (m, 4H), 3.41 (s, 3H). LC-MS: m/z 322.0 (M+H)⁺.

Compound 237—N²-(oxetan-2-ylmethyl)-N⁴,6-diphenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.40-8.33 (m, 2H), 7.74 (d, J=8.2 Hz, 2H), 7.52-7.43 (m, 3H), 7.31 (t, J=8.2 Hz, 2H), 7.02 (t, J=7.6 Hz, 1H), 5.1-5.04 (m, 1H), 4.72-4.66 (m, 1H), 4.62-4.57 (m, 2H), 3.89-3.68 (m, 2H), 2.71-2.67 (m, 1H), 2.61-2.52 (m, 1H). LC-MS: m/z 333.9 (M+H)⁺.

Compound 238—2-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-ylamino)ethanol

¹H NMR (METHANOL-d₄) δ: 8.39-8.31 (m, 2H), 7.75 (d, J=7.6 Hz, 2H), 7.52-7.43 (m, 3H), 7.31 (t, J=7.6 Hz, 2H), 7.02 (t, J=6.9 Hz, 1H), 3.76 (t, J=5.5 Hz, 2H), 3.65-3.59 (m, 2H). LC-MS: m/z 308.0 (M+H)⁺.

Compound 239—2,2-dimethyl-3-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-ylamino)propan-1-ol

¹H NMR (METHANOL-d₄) δ: 8.35-8.29 (m, 2H), 7.74 (t, J=6.5 Hz, 2H), 7.54-7.44 (m, 3H), 7.32 (q, J=7.6 Hz, 2H), 7.06-7.01 (m, 1H), 3.39 (d, J=9.5 Hz, 2H), 3.22 (s, 2H), 0.94 (s, 6H).

LC-MS: m/z 350.1 (M+H)⁺.

Compound 240—1-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-ylamino)propan-2-ol

¹H NMR (METHANOL-d₄) δ: 8.39-8.32 (m, 2H), 7.74 (d, J=7.8 Hz, 2H), 7.52-7.43 (m, 3H), 7.31 (t, J=7.8 Hz, 2H), 7.02 (t, J=7.1 Hz, 1H), 4.06-3.98 (m, 1H), 3.56-3.33 (m, 2H), 1.22 (d, J=6.4 Hz, 3H). LC-MS: m/z 321.9 (M+H)⁺.

Compound 241—2-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-ylamino)propan-1-ol

¹H NMR (METHANOL-d₄) δ: 8.39-8.32 (m, 2H), 7.74 (d, J=7.6 Hz, 2H), 7.52-7.42 (m, 3H), 7.30 (t, J=7.6 Hz, 2H), 7.02 (t, J=7.6 Hz, 1H), 4.37-4.25 (m, 1H), 3.65-3.58 (m, 2H), 1.27 (d, J=6.9 Hz, 3H). LC-MS: m/z 322.0 (M+H)⁺.

Compound 242—3-methyl-2-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-ylamino)butan-1-ol

¹H NMR (METHANOL-d₄) δ: 8.41-8.33 (m, 2H), 7.75 (d, J=8.0 Hz, 2H), 7.52-7.44 (m, 3H), 7.31 (t, J=7.6 Hz, 2H), 7.03 (t, J=7.6 Hz, 1H), 4.25-4.05 (m, 1H), 3.73 (d, J=4.8 Hz, 2H), 2.12-2.02 (m, 1H), 1.04-1.00 (m, 3H). LC-MS: m/z 350.1 (M+H)⁺.

Compound 267—(1R,3R)-3-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-ylamino)cyclopentanol

¹H NMR (METHANOL-d₄) δ: 8.42-8.32 (m, 2H), 7.80-7.75 (m, 2H), 7.52-7.42 (m, 3H), 7.33-7.29 (m, 2H), 7.01 (t, J=7.2 Hz, 1H), 4.63-4.58 (m, 1H), 4.39-4.36 (m, 1H), 2.32-2.25 (m, 1H), 2.10-2.03 (m, 2H), 1.84-1.78 (m, 1H), 1.69-1.52 (m, 2H). LC-MS: m/z 348.1 (M+H)⁺.

Compound 268—N²,6-diphenyl-N⁴-(tetrahydro-2H-pyran-3-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.43-8.36 (m, 2H), 7.77 (t, J=7.6 Hz, 2H), 7.55-7.45 (m, 3H), 7.34 (t, J=7.6 Hz, 2H), 7.05 (t, J=7.2 Hz, 1H), 4.26-4.05 (m, 2H), 3.86-3.83 (m, 1H), 3.55-3.50 (m, 1H), 3.40-3.33 (m, 1H), 2.15-2.06 (m, 1H), 1.87-1.66 (m, 3H). LC-MS: m/z 348.1 (M+H)⁺.

Compound 269—N²-(1-methoxypropan-2-yl)-N⁴,6-diphenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.41-8.35 (m, 2H), 7.78 (d, J=7.2 Hz, 2H), 7.55-7.45 (m, 3H), 7.33 (t, J=7.6 Hz, 2H), 7.05 (t, J=7.2 Hz, 1H), 4.54-4.37 (m, 1H), 3.58-3.55 (m, 1H), 3.46-3.41 (m, 1H), 3.41 (s, 3H), 1.30 (d, J=6.9 Hz, 3H). LC-MS: m/z 336.1 (M+H)⁺.

Compound 296—N²-((1S,2R,4R)-bicyclo[2.2.1]heptan-2-yl)-N⁴,6-diphenyl-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ: 9.60-9.47 (m, 1H), 8.36-8.30 (m, 2H), 7.89-7.84 (m, 2H), 7.80-7.61 (m, 1H), 7.56-7.50 (m, 3H), 7.31 (t, J=7.6 Hz, 2H), 6.70 (t, J=6.9 Hz, 1H), 4.30-4.15 (m, 1H), 2.32-2.25 (m, 1H), 2.07-1.90 (m, 1H), 1.65-1.1 (m, 8H). LC-MS: m/z 358.1 (M+H)⁺.

Compound 352—(1S,2R)-2-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-ylamino)cyclopentanol

¹H NMR (METHANOL-d₄) δ: 8.42-8.32 (m, 2H), 7.77 (t, J=7.9 Hz, 2H), 7.56-7.46 (m, 3H), 7.34 (t, J=7.6 Hz, 2H), 7.05 (t, J=7.2 Hz, 1H), 4.42-4.23 (m, 2H), 2.17-2.10 (m, 1H), 1.99-1.87 (m, 2H), 1.80-1.70 (m, 3H). LC-MS: m/z 348.2 (M+H)⁺.

Compound 362—3-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-ylamino)cyclohex-2-enone

¹H NMR (METHANOL-d₄) δ: 8.47 (d, J=7.6 Hz, 1H), 7.78 (br.s., 2H), 7.60-7.50 (m, 3H), 7.39 (t, J=8.2 Hz, 2H), 7.23 (br.s., 1H), 7.12 (t, J=7.6 Hz, 1H), 2.75 (t, J=6.2 Hz, 2H), 2.43 (t, J=6.2 Hz, 2H), 2.12-2.03 (m, 2H). LC-MS: m/z 358.2 (M+H)⁺.

Example 6. Preparation of Additional Compounds of Formula I Wherein Ring A is Phenyl

The compounds of this Example are prepared by general Scheme 6, set forth below.

Example 6, Step 2: Preparation of tert-Butyl-(4-chloro-6-phenyl-[1,3,5]triazin-2-yl)-amine

To a solution of 2,4-dichloro-6-phenyl-1,3,5-triazine (500 mg, 2.212 mmol) in anhydrous THF (4 mL) was added dropwise a solution of tert-butylamine (194.1 mg, 2.654 mol) in THF (1 mL) at room temperature via syringe under N₂. After the addition, the mixture was stirred at room temperature under N₂ for 2 hrs. The reaction was quenched by water (5 mL) and extracted with ethyl acetate. The organic layer was dried, concentrated to afford tert-butyl-(4-chloro-6-phenyl-[1,3, and 5]-triazin-2-yl)-amine as a white solid, which was used the directly in the next step without purification.

Other amines 6 were also employed using the standard procedure described above to give the desired intermediates and were also used in the next step directly without further purification.

Example 6, Step 3: Preparation of Compound 227 6-(2-fluorophenyl)-N²-isopropyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

A mixture of tert-butyl-(4-chloro-6-phenyl-[1, 3, and 5] triazin-2-yl)-amine (186.1 mg, 0.71 mmol), pyridine-4-amine (80 mg, 0.85 mmol), CsF (107.85 mg, 0.71 mmol) and DIEA (275.30 mg, 2.13 mmol) in DMSO (4 mL) was heated to 80° C. for 2 hours. The mixture was filtered and purified by a standard method to give 6-(2-fluorophenyl)-N²-isopropyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine. This compound was also produced by Step 3, procedure A of Example 4.

Additional compounds of one aspect of the invention are produced according to Scheme 6 and the methods set forth in this example using the appropriate amine 6 and the appropriate amine 4.

Compound 186—N²-sec-butyl-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ: 8.44-8.33 (m, 4H), 7.92 (m, 2H), 7.54 (t, J=7.14 Hz, 1H), 7.48 (t, J=7.14 Hz, 2H), 4.30-4.09 (m, 1H), 1.66 (m, 2H), 1.28 (d, J=6.56 Hz, 3H), 1.02 (t, J=7.29 Hz, 3H). LC-MS: m/z 321.1 (M+H)⁺.

Compound 287—N²-cyclopentyl-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ: 8.43-8.37 (m, 4H), 8.06-8.02 (m, 2H), 7.52-7.46 (m, 3H), 4.52-4.36 (m, 1H), 2.08 (m, 2H), 1.80-1.62 (m, 6H). LC-MS: m/z 333.1 (M+H)⁺.

Compound 188—N²-cyclobutyl-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ: 8.50-8.30 (m, 4H), 8.00-7.90 (m, 2H), 7.60-7.40 (m, 3H), 4.55 (m, 1H), 2.45 (m, 2H), 2.10 (m, 2H), 1.80 (m, 2H). LC-MS: m/z 319.1 (M+H)⁺.

Compound 189—N²-tert-butyl-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ: 8.50-8.30 (m, 4H), 8.00-7.90 (m, 2H), 7.60-7.40 (m, 3H), 1.56 (m, 9H). LC-MS: m/z 321.1 (M+H)⁺.

Compound 190—N²-isobutyl-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.35-8.21 (m, 4H), 7.84-7.78 (m, 2H), 7.48-7.34 (m, 3H), 3.30 (d, J=2.0 Hz, 2H), 1.96-1.87 (m, 1H), 0.92 (d, J=6.8 Hz, 6H). LC-MS: m/z 321.0 (M+H)⁺.

Compound 191—N²-neopentyl-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.57-8.52 (m, 1H), 8.43-8.28 (m, 4H), 7.60-7.37 (m, 3H), 3.36 (d, J=2.0 Hz, 2H), 0.94 (d, J=9.6 Hz, 9H). LC-MS: m/z 335.1 (M+H)⁺.

Compound 211—N²-butyl-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ: 8.37-8.25 (m, 4H), 7.84 (d, J=6.41 Hz, 2H), 7.46 (t, J=7.12 Hz, 1H), 7.40 (t, J=7.12 Hz, 2H), 3.50-3.41 (m, 2H), 1.61 (m, 2H), 1.40 (m, 2H), 0.93 (t, J=7.23 Hz, 3H). LC-MS: m/z 321.0 (M+H)⁺.

Compound 212—N²-isopentyl-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ: 8.30-8.18 (m, 4H), 7.77 (d, J=5.98 Hz, 2H), 7.41-7.31 (m, 3H), 3.45-3.36 (m, 2H), 1.60 (m, 1H), 1.45 (m, 2H), 0.86 (d, J=6.52 Hz, 3H). LC-MS: m/z 335.1 (M+H)⁺.

Compound 213—N²-(3-methylbutan-2-yl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ: 8.33-8.23 (m, 4H), 7.85-7.80 (m, 2H), 7.44 (t, J=7.03 Hz, 1H), 7.38 (t, J=7.03 Hz, 2H), 4.14-3.97 (m, 1H), 1.83 (m, 1H), 1.14 (d, J=6.69 Hz, 3H), 0.94-0.90 (m, 6H). LC-MS: m/z 335.1 (M+H)⁺.

Compound 215—6-phenyl-N²-(pyridin-4-yl)-N⁴-(2,2,2-trifluoroethyl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ: 8.44 (m, 2H), 8.36 (m, 2H), 7.90 (m, 2H), 7.55 (t, J=7.32 Hz, 1H), 7.48 (t, J=7.32 Hz, 2H), 4.35-4.20 (in, 2H). LC-MS: m/z 346.9 (M+H)⁺.

Compound 216—N²-(cyclopropylmethyl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ: 8.43-8.32 (m, 4H), 7.91 (m, 2H), 7.53 (t, J=7.21 Hz, 1H), 7.47 (t, J=7.21 Hz, 2H), 3.43-3.36 (m, 2H), 1.18 (m, 1H), 0.54 (m, 2H), 0.32 (m, 2H). LC-MS: m/z 319.0 (M+H)⁺.

Compound 217—N²-cyclopropyl-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ: 8.46-8.33 (m, 4H), 8.01-7.91 (m, 2H), 7.54-7.44 (m, 3H), 2.88-2.99 (m, 1H), 0.87 (m, 2H), 0.64 (m, 2H). LC-MS: m/z 305.0 (M+H)⁺.

Compound 218—N²-(1-methylcyclopropyl)-6-phenyl-N-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ: 8.51-8.33 (m, 4H), 8.05-7.90 (m, 2H), 7.54-7.44 (m, 3H), 1.54 (s, 3H), 0.91-0.77 (m, 4H). LC-MS: m/z 319.0 (M+H)⁺.

Compound 219—N²-(2-methylcyclopropyl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ: 8.57-8.40 (m, 4H), 7.98-8.09 (m, 2H), 7.59 (t, J=7.23 Hz, 1H), 7.53 (t, J=7.23 Hz, 2H), 2.66 (m, 1H), 1.29 (d, J=5.43 Hz, 3H), 1.05 (m, 1H), 0.91 (m, 1H), 0.70 (m, 1H). LC-MS: m/z 319.2 (M+H)⁺.

Compound 220—N²-(2-methylbutyl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ: 8.47 (m, 2H), 8.39 (d, J=5.80 Hz, 2H), 7.97 (m, 2H), 7.59 (t, J=6.44 Hz, 1H), 7.53 (t, J=6.44 Hz, 2H), 3.58-3.29 (m, 2H), 1.85 (m, 1H), 1.60 (m, 1H), 1.32 (m, 1H), 1.06-1.02 (m, 6H). LC-MS: m/z 335.2 (M+H)⁺.

Compound 221—N²-((2-methyltetrahydrofuran-2-yl)methyl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ: 8.51-8.41 (m, 4H), 7.99 (m, 2H), 7.61 (t, J=7.22 Hz, 1H), 7.55 (t, J=7.22 Hz, 2H), 3.98 (m, 2H), 3.78-3.65 (m, 2H), 2.10-1.80 (m, 4H), 1.36 (s, 3H). LC-MS: m/z 363.1 (M+H)⁺.

Compound 222—6-phenyl-N²-(pyridin-4-yl)-N⁴-((tetrahydrofuran-2-yl)methyl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ: 8.53-8.42 (m, 4H), 8.02 (m, 2H), 7.62 (t, J=7.21 Hz, 1H), 7.56 (t, J=7.21 Hz, 2H), 4.27 (m, 1H), 4.01 (m, 1H), 3.86 (q, J=7.23 Hz, 1H), 3.75 (m, 1H), 3.68 (m, 1H), 2.17-1.83 (m, 4H). LC-MS: m/z 349.2 (M+H)⁺.

Compound 234—N²-(morpholin-2-ylmethyl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.42 (d, J=7.2 Hz, 1H), 8.39-8.32 (m, 3H), 7.89 (d, J=4.8 Hz, 2H), 7.51 (d, J=6.8 Hz, 1H), 7.48-7.44 (m, 2H), 3.90-3.87 (m, 1H), 3.76-3.74 (m, 1H), 3.63-3.52 (m, 3H), 2.99-2.96 (m, 1H), 2.81-2.78 (m, 2H), 2.62-2.53 (m, 1H). LC-MS: m/z 364.0 (M+H)⁺.

Compound 235—6-phenyl-N²-(pyridin-4-yl)-N⁴-(tetrahydrofuran-3-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ: 9.8-10.0 (m, 1H), 8.1-8.4 (m, 4H), 7.9-8.1 (m, 1H), 7.6-7.8 (m, 2H), 7.3-7.5 (m, 3H), 4.3-4.6 (m, 1H), 3.75-3.85 (m, 1H), 3.7-3.75 (m, 1H), 3.55-3.65 (m, 1H), 3.45-3.55 (m, 1H), 2.0-2.15 (m, 1H), 61.75-1.85 (m, 1H). LC-MS: m/z 335.1 (M+H)⁺.

Compound 236—N²-(oxetan-3-yl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.3-8.5 (m, 4H), 7.8-8.0 (m, 2H), 7.45-7.6 (m, 3H), 5.15-5.4 (m, 1H), 5.03 (t, J=6.8 Hz, 2H), 4.76 (t, J=6.4 Hz, 2H). LC-MS: m/z 320.9 (M+H)⁺.

Compound 248—N²-ethyl-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (CDCl3) δ: 8.50 (m, 2H), 8.43-8.32 (m, 2H), 7.65 (m, 2H), 7.55-7.46 (m, 3H), 7.20-7.08 (m, 1H), 5.45-5.29 (m, 1H), 3.66-3.54 (m, 2H), 1.32 (t, J=7.25 Hz, 3H). LC-MS: m/z 292.9 (M+H)⁺.

Compound 249—6-phenyl-N²-propyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ: 8.46-8.35 (m, 4H), 7.96 (m, 2H), 7.55 (t, J=7.25 Hz, 1H), 7.49 (t, J=7.25 Hz, 2H), 3.56-3.45 (m, 2H), 1.73 (m, 2H), 1.05 (t, J=7.35 Hz, 3H). LC-MS: m/z 307.0 (M+H)⁺.

Compound 250—N²-(cyclobutylmethyl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.29-8.48 (m, 4H), 7.88-7.95 (m, 2H), 7.49-7.51 (m, 3H), 3.48-3.61 (m, 2H), 2.60-2.75 (m, 1H), 2.08-2.18 (m, 2H), 1.75-2.00 (m, 4H). LC-MS: m/z 332.4 (M+H)⁺.

Compound 251—N²-(3-methyloxetan-3-yl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.3-8.5 (m, 4H), 7.8-8.0 (m, 2H), 7.4-7.6 (m, 3H), 4.96 (d, J=6.4 Hz, 2H), 4.60 (d, J=6.0 Hz, 2H), 1.81 (s, 3H). LC-MS: m/z 334.9 (M+H)⁺.

Compound 252—N²-(2-methoxy-2-methylpropyl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.30-8.49 (m, 4H), 7.88-7.98 (m, 2H), 7.46-7.51 (m, 3H), 3.62 (s, 1H), 3.70 (s, 2H), 3.30 (s, 3H), 1.25 (s, 6H). LC-MS: m/z 350.43 (M+H)⁺.

Compound 253—N²-(3,3-difluorocyclobutyl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ: 8.27-8.18 (m, 4H), 7.73 (m, 2H), 7.37 (t, J=6.92 Hz, 1H), 7.31 (t, J=6.92 Hz, 2H), 4.34-4.26 (m, 1H), 2.89 (m, 2H), 2.53 (m, 2H). LC-MS: m/z 354.9 (M+H)⁺.

Compound 254—N²-(4,4-difluorocyclohexyl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ: 8.47-8.35 (m, 4H), 7.93 (m, 2H), 7.56 (t, J=7.19 Hz, 1H), 7.50 (t, J=7.19 Hz, 2H), 4.28-4.12 (m, 1H), 1.76-2.18 (m, 8H). LC-MS: m/z 383.1 (M+H)⁺.

Compound 255—N²-(3,3-dimethylbutan-2-yl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.33-8.42 (m, 4H), 7.91-7.96 (m, 2H), 7.46-7.53 (m, 3H), 1.36 (d, J=6.4 Hz, 1H), 1.21 (d, J=6.8 Hz, 2H), 1.01 (s, 9H). LC-MS: m/z 349.1 (M+H)⁺.

Compound 256—4-(4-phenyl-6-(pyridin-4-ylamino)-1,3,5-triazin-2-ylamino)cyclohexanol

¹H NMR (METHANOL-d₄) δ: 8.56-8.30 (m, 4H), 7.90 (d, J=5.5 Hz, 2H), 7.53-7.44 (m, 3H), 3.85-4.1 (m, 1H), 3.62 (s, 1H), 2.15 (s, 2H), 2.03 (s, 2H), 1.46-1.35 (m, 4H). LC-MS: m/z 363.2 (M+H)⁺.

Compound 257—N²-(1-cyclopropylethyl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.40-8.34 (m, 4H), 7.94-7.90 (d, J=16 Hz, 3H), 7.53-7.45 (m, 3H), 4.59 (br.s., 1H), 3.75-3.68 (m, 1H), 1.36-1.35 (d, J=4 Hz, 1H), 1.05 (br.s., 1H), 0.59-0.47 (m, 3H), 0.3 (br.s., 1H). LC-MS: m/z 333.2 (M+H)⁺.

Compound 258—6-phenyl-N²-(pyridin-4-yl)-N⁴-(tetrahydro-2H-pyran-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ: 9.38 (m, 2H), 8.54 (m, 2H), 7.65-7.53 (m, 3H), 7.03 (m, 2H), 4.39-4.30 (m, 1H), 4.05 (m, 2H), 3.64 (m, 2H), 2.06 (m, 2H), 1.73 (m, 2H). LC-MS: m/z 349.2 (M+H)⁺.

Compound 259—2,2-dimethyl-3-(4-phenyl-6-(pyridin-4-ylamino)-1,3,5-triazin-2-ylamino)propan-1-ol

¹H NMR (METHANOL-d4) δ: 9.38 (m, 2H), 8.54 (m, 2H), 7.65-7.53 (m, 3H), 7.03 (m, 2H), 4.39-4.30 (m, 1H), 4.05 (m, 2H), 3.64 (m, 2H), 2.06 (m, 2H), 1.73 (m, 2H). LC-MS: m/z 349.2 (M+H)⁺.

Compound 262—N²-(2-ethoxyethyl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.46-8.35 (m, 4H), 7.93-7.91 (d, J=6 Hz, 2H), 7.55-7.47 (m, 3H), 4.93-4.63 (m, 3H), 4.63 (br.s., 1H), 3.77-3.70 (m, 4H), 3.62-3.57 (m, 2H), 1.23 (t, J=6.8 Hz, 3H). LC-MS: m/z 336.9 (M+H)⁺.

Compound 263—6-phenyl-N²-(pyridin-4-yl)-N⁴-(3,3,3-trifluoropropyl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.35-8.47 (m, 4H), 7.90-7.93 (m, 2H), 7.46-7.56 (m, 3H), 3.75-3.82 (m, 2H), 2.57-2.65 (m, 2H). LC-MS: m/z 361.0 (M+H)⁺.

Compound 264—N²-(oxetan-2-ylmethyl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (CDCl3) δ: 8.47 (d, J=5.41 Hz, 2H), 8.36 (m, 2H), 7.63 (m, 2H), 7.52 (t, J=6.84 Hz, 1H), 7.46 (t, J=6.84 Hz, 2H), 7.18 (m, 1H), 6.25-5.92 (m, 1H), 5.09 (m, 1H), 4.65 (m, 2H), 3.87-3.67 (m, 2H), 2.62 (m, 2H). LC-MS: m/z 335.2 (M+H)⁺.

Compound 265—2-methyl-1-(4-phenyl-6-(pyridin-4-ylamino)-1,3,5-triazin-2-ylamino)propan-2-ol

¹H NMR (CDCl3) δ: 8.51 (m, 2H), 8.36 (d, J=7.70 Hz, 2H), 7.65 (d, J=4.74 Hz, 2H), 7.55 (t, J=7.70 Hz, 1H), 7.48 (t, J=7.70 Hz, 2H), 7.21 (m, 1H), 5.86 (m, 1H), 3.59 (m, 2H), 1.33 (s, 6H). LC-MS: m/z 337.3 (M+H)⁺.

Compound 271—1-(4-phenyl-6-(pyridin-4-ylamino)-1,3,5-triazin-2-ylamino)propan-2-ol

¹H NMR (METHANOL-d₄) δ: 9.38-9.44 (m, 2H), 8.54-8.59 (m, 2H), 7.55-7.64 (m, 3H), 7.01-7.05 (m, 2H), 4.00-4.06 (m, 1H), 3.59-3.67 (m, 2H), 1.29-1.30 (d, J=6.4 Hz, 3H). LC-MS: m/z 323.1 (M+H)⁺.

Compound 272—N²-(1-methoxypropan-2-yl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.39-8.45 (m, 4H), 7.97-8.01 (m, 2H), 7.48-7.50 (m, 3H), 4.35-4.62 (m, 1H), 3.57-3.61 (m, 2H), 3.43 (s, 3H), 1.32-1.33 (d, J=4.0 Hz, 3H). LC-MS: m/z 337.1 (M+H)⁺.

Compound 273—6-phenyl-N²-(pyridin-4-yl)-N⁴-(tetrahydro-2H-pyran-3-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 9.36-9.41 (m, 2H), 8.53-8.57 (m, 2H), 7.53-7.66 (m, 3H), 7.01-7.05 (m, 2H), 4.17-4.39 (m, 1H), 4.02-4.11 (m, 1H), 3.83-3.91 (m, 1H), 2.10-2.20 (m, 1H), 1.77-1.80 (m, 3H). LC-MS: m/z 349.2 (M+H)⁺.

Compound 274—N²-(2-methoxypropyl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 9.29-9.33 (m, 2H), 8.48-8.52 (m, 2H), 7.52-7.61 (m, 3H), 6.98-7.01 (m, 2H), 3.55-3.78 (m, 3H), 3.44 (s, 3H), 1.26-1.27 (d, J=4.0 Hz, 3H). LC-MS: m/z 337.2 (M+H)⁺.

Compound 275—N²-(3-methoxypropyl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 8.36-8.41 (m, 4H), 7.93-7.95 (m, 2H), 7.49-7.51 (m, 3H), 3.54-3.60 (m, 4H), 3.38 (s, 3H), 1.95-1.98 (m, 2H). LC-MS: m/z 337.1 (M+H)⁺.

Compound 276—3-(4-phenyl-6-(pyridin-4-ylamino)-1,3,5-triazin-2-ylamino)cyclobutanone

¹H NMR (METHANOL-d₄) δ: 8.39-8.44 (m, 4H), 7.97 (s, 2H), 7.48-7.56 (m, 3H), 4.70-4.80 (m, 1H), 3.51-3.58 (m, 2H), 3.20-3.30 (m, 2H). LC-MS: m/z 333.0 (M+H)⁺.

Compound 278—2-(4-phenyl-6-(pyridin-4-ylamino)-1,3,5-triazin-2-ylamino)propan-1-ol

¹H NMR (METHANOL-d₄) δ: 9.28-9.33 (m, 2H), 8.46-8.51 (m, 2H), 7.49-7.54 (m, 3H), 6.95-6.99 (m, 2H), 4.30-4.55 (m, 1H), 3.68-3.72 (m, 2H), 1.34 (t, J=6.8 Hz, 1H). LC-MS: m/z 323.0 (M+H)⁺.

Compound 279—3-methyl-2-(4-phenyl-6-(pyridin-4-ylamino)-1,3,5-triazin-2-ylamino)butan-1-ol

¹H NMR (METHANOL-d₄) δ: 9.23-9.26 (m, 2H), 8.4 (d, J=8.0 Hz, 2H), 7.41-7.5 (m, 3H), 6.89 (t, J=8.0 Hz, 2H), 4.1-4.3 (m, 1H), 3.6-3.8 (m, 1H), 1.9-2.1 (m, 1H), 0.9-1.1 (m. 6H). LC-MS: m/z 351.1 (M+H)⁺.

Compound 280—N²-cyclohexyl-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 9.34 (t, J=8.0 Hz, 2H), 8.51 (t, J=8.0 Hz, 2H), 7.50-7.63 (m, 3H), 6.98-7.03 (m, 2H), 4.0-4.2 (m, 1H), 2.08 (t, J=12 Hz, 2H), 1.85-1.87 (m, 2H), 1.52-1.53 (m, 1H), 1.28-1.51 (m, 5H). LC-MS: m/z 347.1 (M+H)⁺.

Compound 282—2-(4-phenyl-6-(pyridin-4-ylamino)-1,3,5-triazin-2-ylamino)cyclohexanol

¹H NMR (METHANOL-d4) δ: 9.18 (m 2H), 8.32 (m, 3H), 7.46-7.32 (m, 3H), 6.82 (m, 2H), 4.13-4.02 (m, 1H), 3.96-3.90 (m, 1H), 1.71-1.30 (m, 8H). LC-MS: m/z 363.0 (M+H)⁺.

Compound 283—(1S,3R)-3-(4-phenyl-6-(pyridin-4-ylamino)-1,3,5-triazin-2-ylamino)cyclopentanol

¹H NMR (DMSO-d6) δ: 9.37-9.22 (m, 2H), 9.18 (m, 2H), 8.88-8.69 (m, 1H), 8.54-8.44 (m, 2H), 7.71-7.57 (m, 3H), 7.04 (d, J=7.85 Hz, 2H), 4.44 (m, 1H), 4.18 (m, 1H), 2.33-1.54 (m, 6H). LC-MS: m/z 49.1 (M+H)⁺.

Compound 284—1-(4-phenyl-6-(pyridin-4-ylamino)-1,3,5-triazin-2-ylamino)cyclobutanecarbonitrile

¹H NMR (METHANOL-d4) δ: 8.47 (m, 2H), 8.38 (m, 2H), 7.95 (m, 2H), 7.57 (t, J=6.74 Hz, 1H), 7.50 (t, J=6.74 Hz, 2H), 2.88 (m, 2H), 2.57 (m, 2H), 2.22 (m, 2H). LC-MS: m/z 344.0 (M+H)⁺.

Compound 285—1-(4-phenyl-6-(pyridin-4-ylamino)-1,3,5-triazin-2-ylamino)cyclopropanecarbonitrile

¹H NMR (METHANOL-d4) δ: 9.46-9.35 (m, 2H), 8.71-8.55 (m, 2H), 7.70-7.54 (m, 3H), 7.09-7.01 (m, 2H), 1.75 (m, 2H), 1.46 (m, 2H). LC-MS: m/z 330.0 (M+H)⁺.

Compound 286—3,3-dimethyl-2-(4-phenyl-6-(pyridin-4-ylamino)-1,3,5-triazin-2-ylamino)butan-1-ol

¹H NMR (METHANOL-d4) δ: 9.43 (m, 2H), 8.59 (m, 2H), 7.67-7.55 (m, 3H), 7.05 (m, 2H), 4.53-4.30 (m, 1H), 4.01 (m, 1H), 3.68 (m, 1H), 1.09 (s, 9H). LC-MS: m/z 365.1 (M+H)⁺.

Compound 291—2-(4-phenyl-6-(pyridin-4-ylamino)-1,3,5-triazin-2-ylamino)butan-1-ol

¹H NMR (METHANOL-d4) δ: 9.38 (m, 2H), 8.54 (m, 2H), 7.65-7.51 (m, 3H), 7.01 (m, 2H), 4.37-4.22 (m, 1H), 3.71 (m, 2H), 1.73 (m, 2H), 1.04 (m, 3H). LC-MS: m/z 337.1 (M+H)⁺.

Compound 294—2-(4-phenyl-6-(pyridin-4-ylamino)-1,3,5-triazin-2-ylamino)ethanol

¹H NMR (METHANOL-d4) δ: 9.40 (m, 2H), 8.56 (m, 2H), 7.65-7.53 (m, 3H), 7.03 (m, 2H), 3.84-3.72 (m, 4H). LC-MS: m/z 309.0 (M+H)⁺.

Compound 295—N²-((1S,2R,4R)-bicyclo[2.2.1]heptan-2-yl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ: 10.03 (br.s., 1H), 8.41-8.31 (m, 4H), 8.03-7.85 (m, 3H), 7.59-7.52 (m, 3H), 4.30-4.10 (m, 1H), 2.33-2.09 (m, 1H), 2.05-1.90 (m, 1H), 1.66-1.19 (m, 8H). LC-MS: m/z 359.2 (M+H)⁺.

Compound 297—N²-(3-oxabicyclo[3.1.0]hexan-6-yl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ: 10.10 (br.s., 1H), 8.41-8.38 (m, 4H), 8.32-8.00 (m, 1H), 7.95-7.85 (m, 2H), 7.58-7.53 (m, 3H), 3.97 (m, 2H), 3.73 (m, 2H), 2.70-2.55 (m, 1H), 1.96 (m, 2H). LC-MS: m/z 347.0 (M+H)⁺.

Compound 300—N²-(oxetan-3-ylmethyl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ: 8.38-8.30 (m, 4H), 7.89 (m, 2H), 7.53-7.44 (m, 3H), 4.83 (m, 2H), 4.56 (m, 2H), 3.83 (m, 2H), 3.35 (m, 1H). LC-MS: m/z 335.0 (M+H)⁺.

Compound 304—3-(4-phenyl-6-(pyridin-4-ylamino)-1,3,5-triazin-2-ylamino)cyclohexanol

¹H NMR (METHANOL-d₄) δ: 8.33-8.44 (m, 4H), 7.90-7.93 (m, 2H), 7.46-7.54 (m, 3H), 3.9-4.2 (m, 1H), 3.6-3.8 (m, 1H), 2.35-2.38 (m, 1H), 1.87-2.06 (m, 3H), 1.26-1.36 (m, 4H). LC-MS: m/z 363.2 (M+H)⁺.

Compound 305—N²-(3-methoxycyclobutyl)-6-phenyl-N⁴-(pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ: 9.32-9.38 (m, 2H), 8.49-8.54 (m, 2H), 7.49-7.62 (m, 3H), 6.98-7.01 (m, 2H), 4.2-4.6 (m, 1H), 3.7-4.1 (m, 1H), 3.3 (br. s., 1H), 2.83-2.84 (m, 1H), 2.47-2.50 (m, 1H), 2.36-2.38 (m, 1H), 2.0-2.04 (m, 1H). LC-MS: m/z 349.2 (M+H)⁺.

Example 7. Preparation of Compounds of Formula I Wherein R¹ and R³ are Taken Together with the Carbon Atom to which they are Attached to Form C(═O)

The compounds of this Example are prepared by general Scheme 7, Procedure 1 or 2, as set forth below.

Example 7, Step 3 (Procedure 1): Preparation of N²,6-diphenyl-1,3,5-triazine-2,4-diamine

A mixture of 4-chloro-N,6-diphenyl-1,3,5-triazin-2-amine (4.0 g, 0.14 mol) and NH₃.H₂O (40 mL) in THF (12 mL) was added in a sealed tube. The reaction mixture was stirred at 80° C. for 16 hours. The mixture was extracted with ethyl acetate (50 mL×3). The organic layer was dried over anhydrous Na₂SO₄ and concentrated to give N²,6-diphenyl-1,3,5-triazine-2,4-diamine as a white solid, which was used in the next step directly without further purification.

Preparation of Compound 179—Isobutyl 4-phenyl-6-(phenyl-amino)-1,3,5-triazin-2-ylcarbamate (Procedure 1, Step 4, Reagent 17)

Pyridine (60 mg, 0.76 mmol) was added dropwise to a solution of N²,6-diphenyl-1,3,5-triazine-2,4-diamine (100 mg, 0.38 mmol) in DCM (4 mL) under ice-bath cooling. The mixture was then stirred 0° C. for 15 min, then isobutyl carbonochloridate (63 mg, 0.46 mmol) was added dropwise and the resultant mixture was stirred at rt for 1 hours. The reaction mixture was concentrated and purified by a standard method to give isobutyl 4-phenyl-6-(phenyl-amino)-1,3,5-triazin-2-ylcarbamate.

¹H NMR (METHANOL-d₄) δ: 8.48 (d, J=7.2 Hz, 2H), 7.82 (br.s., 2H), 7.55-7.46 (m, 3H), 7.36 (br.s., 2H), 7.07 (br.s., 1H), 4.01 (d, J=6.8 Hz, 2H), 2.06-2.00 (m, 1H), 1.01 (d, J=6.8 Hz, 6H). LC-MS: m/z 364.0 (M+H)⁺

Other compounds of one aspect of the invention were similarly prepared using Example 7, Procedure 1, Step 4 of this example and the appropriate chloridate 17.

Compound 160—isopropyl 4-phenyl-6-(phenylamino)-1,3,5-triazin-2-ylcarbamate

¹H NMR (DMSO-d₆) δ: 10.48 (br.s., 1H), 10.12 (br.s., 1H), 8.38 (d, J=7.2 Hz, 2H), 8.02 (br.s., 2H), 7.61-7.53 (m, 3H), 7.33 (br.s., 2H), 7.04 (t, J=7.2 Hz, 1H), 4.98 (t, J=6.4 Hz, 1H), 1.30 (d, J=6.0 Hz, 6H). LC-MS: m/z 350.1 (M+H)⁺

Compound 183—N-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-yl)pivalamide

¹H NMR (DMSO-d₆) δ: 10.14 (br.s., 1H), 9.95 (br.s., 1H), 8.40 (d, J=6.4 Hz, 2H), 8.02 (br.s., 2H), 7.60-7.55 (m, 3H), 7.33 (br.s., 2H), 7.03 (br.s., 1H), 1.27 (s, 9H). LC-MS: m/z 348.0 (M+H)⁺

Compound 208—Neopentyl 4-phenyl-6-(phenylamino)-1,3,5-triazin-2-ylcarbamate

¹H NMR (DMSO-d₆) δ: 10.57 (br.s., 1H), 10.12 (br.s., 1H), 8.38 (d, J=7.2 Hz, 2H), 8.02 (br.s., 2H), 7.62-7.52 (m, 3H), 7.32 (t, J=7.2 Hz, 2H), 7.03 (t, J=7.2 Hz, 1H), 3.85 (s, 2H), 0.96 (s, 9H). LC-MS: m/z 378.0 (M+H)⁺

Compound 232—cyclopropylmethyl 4-phenyl-6-(phenylamino)-1,3,5-triazin-2-ylcarbamate

¹H NMR (DMSO-d₆) δ: 10.46. (br.s., 1H), 10.12 (br.s., 1H), 8.38 (d, J=7.2 Hz, 2H), 8.02 (br.s., 2H), 7.70-7.54 (m, 3H), 7.31 (br.s., 2H), 7.02 (br.s., 1H), 4.00 (d, J=7.2 Hz, 2H), 0.88-0.85 (m, 1H), 0.56 (d, J=7.2 Hz, 2H), 0.35 (d, J=7.2 Hz, 2H). LC-MS: m/z 362.0 (M+H)⁺

Compound 233—N-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-yl)cyclopropanecarboxamide

¹H NMR (DMSO-d₆) δ: 10.89. (br.s., 1H), 10.13 (br.s., 1H), 8.37 (d, J=7.2 Hz, 2H), 7.97 (br.s., 2H), 7.62-7.53 (m, 3H), 7.32 (br.s., 2H), 7.04 (t, J=6.8 Hz, 1H), 2.32 (br.s., 1H), 0.90-0.84 (m., 4H). LC-MS: m/z 332.1 (M+H)⁺

Compound 347—N-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-yl)-1H-pyrazole-5-carboxamide

¹H NMR (METHANOL-d₄) δ: 8.37 (d, J=7.2 Hz, 2H), 7.75 (br.s., 2H), 7.72 (s, 1H), 7.51-7.42 (m, 3H), 7.31 (t, J=7.6 Hz, 2H), 7.03 (t, J=7.2 Hz, 1H), 6.89 (s, 1H). LC-MS: m/z 358.1 (M+H)⁺

Compound 412—1-hydroxy-N-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-yl)cyclopropanecarboxamide

¹H NMR (METHANOL-d₄) δ: 8.36 (d, J=7.2 Hz, 2H), 7.60-7.89 (m, 2H), 7.48-7.39 (m, 3H), 7.29 (br.s., 2H), 7.25 (br.s., 2H), 1.29 (q, J=4.8 Hz, 2H), 1.06 (q, J=4.4 Hz, 2H). LC-MS: m/z 347.9 (M+H)⁺

Compound 413—5-oxo-N-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-yl)pyrrolidine-2-carboxamide

H NMR (METHANOL-d₄) δ: 8.33 (d, J=7.6 Hz, 2H), 7.73 (d, J=8.2 Hz, 2H), 7.53-7.43 (m, 3H), 7.31 (t, J=7.6 Hz, 2H), 7.03 (t, J=6.9 Hz, 1H), 4.12-4.08 (m, 1H), 2.44-2.25 (m, 3H), 2.18-2.10 (m, 1H). LC-MS: m/z 375.2 (M+H)⁺

Compound 415—N-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-yl)tetrahydrofuran-3-carboxamide

¹H NMR (METHANOL-d₄) δ: 8.24 (d, J=7.6 Hz, 2H), 7.55-7.37 (m, 6H), 7.25 (d, J=7.2 Hz, 2H), 4.13-4.06 (m, 3H), 3.96 (q, J=8.0 Hz, 1H), 3.36 (q, J=7.26 Hz, 1H), 2.40-2.20 (m, 2H). LC-MS: m/z 362.2 (M+H)⁺

Preparation of Compound 414—1H-Pyrrole-2-carboxylic acid (4-phenyl-6-phenylamino-[1,3,5]triazin-2-yl)-amide (Procedure 1, Step 4 Reagent 18)

To a solution of (4-amino-6-phenyl-[1,3,5]-triazin-2-yl)-phenyl-amine (210.6 mg, 0.8 mmol) in DCE (4 mL) was added Me₃Al (1 mL, 2.0 mmol) at 0° C. The mixture was stirred for 50 mins, warmed up to room temperature and 1H-Pyrrole-2-carboxylic acid methyl ester (50 mg, 0.4 mmol) was added. The mixture was stirred for 48 hr at 80° C. The reaction mixture was diluted with H₂O (5 mL) and extracted with EtOAc (5 mL×3). The combined organic layers were dried over Na₂SO₄ and concentrated to give a crude residue, which was purified by a standard method to give 1H-pyrrole-2-carboxylic acid (4-phenyl-6-phenyl-amino-[1,3,5]triazin-2-yl)-amide.

¹H NMR (METHANOL-d₄) δ: 8.39 (d, J=7.2 Hz, 1H), 7.75 (br.s., 2H), 7.48-7.40 (m, 3H), 7.29 (t, J=7.2 Hz, 2H), 7.07 (d, J=2.8 Hz, 1H), 6.99 (s, 2H), 6.18 (t, J=3.6 Hz, 1H). LC-MS: m/z 357.0 (M+H)⁺

Other compounds of one aspect of the invention were similarly prepared using Example 7, Procedure 1, Step 4 of this example, trimethylaluminum, and the appropriate ester 18.

2-oxo-N-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-yl)propanamide

¹H NMR (DMSO-d₆) δ: 11.30 (s, 1H), 10.34 (s, 1H), 8.24 (d, J=6.4 Hz, 2H), 7.82 (d, J=8.4 Hz, 2H), 7.65-7.50 (m, 3H), 7.38 (br.s., 2H), 7.11 (t, J=7.2 Hz, 1H), 2.39 (br.s., 3H). LC-MS: m/z 334.2 (M+H)⁺.

Preparation of Compound 416—Tert-butyl 4-phenyl-6-(phenylamino)-1,3,5-triazin-2-ylcarbamate Example 7, (Procedure 2)

A mixture of 4-chloro-N,6-diphenyl-1,3,5-triazin-2-amine (141 mg, 0.5 mmol), tert-butyl carbamate (69.6 mg, 0.6 mmol), Pd(AcO)₂ (24 mg, 0.05 mmol), X-phos (67.3 mg, 0.1 mmol) and Cs₂CO₃ (326 mg, 1 mmol) in dioxane (5 mL) was purged with N₂ for 5 minutes. Then the mixture was heated to 80° C. for 2 hours. The reaction mixture was filtered. The filtrate was concentrated and purified by a standard method to give tert-butyl 4-phenyl-6-(phenylamino)-1,3,5-triazin-2-ylcarbamate.

¹H NMR (DMSO-d₆) δ: 10.24. (br.s., 1H), 10.07 (br.s., 1H), 8.38 (d, J=6.8 Hz, 2H), 7.99 (br.s., 2H), 7.62-7.53 (m, 3H), 7.31 (br.s., 2H), 7.04 (t, J=6.8 Hz, 1H), 1.51 (s, 9H). LC-MS: m/z 364.2 (M+H)⁺.

Other compounds of one aspect of the invention were similarly prepared using Example 7, Procedure 2 of this example and the appropriate amine 19.

Compound 181—ethyl 4-phenyl-6-(phenylamino)-1,3,5-triazin-2-ylcarbamate

¹H NMR (DMSO-d₆) δ: 10.58. (br.s., 1H), 10.12 (br.s., 1H), 8.37 (d, J=6.8 Hz, 2H), 8.05. (br.s., 2H), 7.60-7.52 (m, 3H), 7.32 (br.s., 2H), 7.04 (t, J=7.6 Hz, 1H), 4.20 (q, J=6.8 Hz, 2H), 1.27 (t, J=6.8 Hz, 1H). LC-MS: m/z 336.2 (M+H)⁺.

Compound 182—1,1-dimethyl-3-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-yl)urea

¹H NMR (DMSO-d₆) δ: 9.59. (br.s., 1H), 9.35 (br s., 1H), 8.34 (d, J=7.2 Hz, 2H), 7.86 (d, J=8.0 Hz, 2H), 7.58-7.51 (m, 3H), 7.31 (t, J=7.2 Hz, 2H), 7.02 (t, J=7.2 Hz, 1H), 2.97 (s, 6H).

LC-MS: m/z 335.0 (M+H)⁺

Compound 207—1-ethyl-3-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-yl)urea

¹H NMR (DMSO-d₆) δ: 10.10. (br.s., 1H), 9.84 (br.s., 1H), 8.30 (d, J=6.9 Hz, 2H), 7.73 (br.s., 2H), 7.63-7.53 (m, 3H), 7.38 (br.s., 2H), 7.11 (t, J=7.2 Hz, 1H), 3.33 (br.s., 2H), 1.11 (br.s., 3H). LC-MS: m/z 335.2 (M+H)⁺

Compound 209—N-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-yl)propionamide

¹H NMR (DMSO-d₆) δ: 10.53. (br.s., 1H), 10.10 (br.s., 1H), 8.36 (d, J=6.9 Hz, 2H), 7.96 (br.s., 2H), 7.62-7.53 (m, 3H), 7.33 (t, J=7.2 Hz, 2H), 7.04 (t, J=7.2 Hz, 1H), 2.66-2.62 (m, 2H), 1.08 (t, J=7.6 Hz, 3H). LC-MS: m/z 320.2 (M+H)⁺

Compound 243—N-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-yl)tetrahydrofuran-2-carboxamide

¹H NMR (DMSO-d₆) δ: 10.21. (br.s., 2H), 8.38 (d, J=7.6 Hz, 2H), 8.00 (br.s., 2H), 7.63-7.53 (m, 3H), 7.34 (br.s., 2H), 7.06 (t, J=7.2 Hz, 1H), 4.69 (br.s., 1H), 3.95-3.82 (m., 1H), 4.01-3.97 (m., 1H), 2.32-2.19 (m., 1H), 2.03-1.85 (m., 3H). LC-MS: m/z 362.0 (M+H)⁺

Compound 244—2-isopropoxy-N-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-yl)acetamide

¹H NMR (DMSO-d₆) δ: 10.35. (br.s., 1H), 10.20 (br.s., 1H), 8.37 (d, J=7.2 Hz, 2H), 7.92 (br.s., 2H), 7.62-7.54 (m, 3H), 7.35 (br.s., 2H), 7.08 (t, J=7.2 Hz, 1H), 4.37 (s, 2H), 3.70-3.67 (m., 1H), 1.15 (d, J=6.0 Hz, 6H). LC-MS: m/z 364.0 (M+H)⁺

Compound 324—2-hydroxy-N-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-yl)propanamide

¹H NMR (DMSO-d₆) δ: 10.28. (br.s., 1H), 10.05. (br.s., 1H), 8.39 (d, J=7.2 Hz, 2H), 8.09 (br.s., 2H), 7.63-7.55 (m, 3H), 7.36 (br.s., 2H), 7.05 (br.s., 1H), 5.88 (br.s., 1H), 4.38-4.35 (m, 1H), 1.35 (d, J=6.8 Hz, 3H). LC-MS: m/z 335.9 (M+H)⁺

Compound 348—2-hydroxy-N-(4-phenyl-6-(phenylamino)-1,3,5-triazin-2-yl)acetamide

¹H NMR (METHANOL-d₄) δ: 8.44 (d, J=7.6 Hz, 2H), 7.74 (br.s., 2H), 7.60-7.49 (m, 3H), 7.38 (t, J=7.6 Hz, 2H), 7.12 (t, J=7.6 Hz, 1H), 4.94 (s, 2H). LC-MS: m/z 322.1 (M+H)⁺

Additional compounds of Formula I that were prepared according to Example 1, Step 3, Procedure C using the appropriate reagent 4 are as follows:

Compound 450—methyl 4-((4-(isopropylamino)-6-phenyl-1,3,5-triazin-2-yl)amino)picolinate

¹H NMR (METHANOL-d₄) δ 9.08-8.74 (d, 1H), 8.49-8.43 (m, 3H), 8.13-7.83 (m, 1H), 7.56-7.48 (m, 3H), 4.37-4.34 (m, 1H), 4.02 (s, 3H0, 1.35-1.30 (m, 6H). LC-MS: m/z 365.2 (M+H)⁺

Compound 451—2-(4-((4-(isopropylamino)-6-phenyl-1,3,5-triazin-2-yl)amino)pyridin-2-yl)propan-2-ol

¹H NMR (METHANOL-d₄) δ 8.48-8.23 (m, 4H), 7.72-7.63 (m, 1H), 7.56-7.44 (m, 3H), 4.48-4.28 (m, 1H), 1.57 (s, 6H), 1.30 (d, 6H). LC-MS: m/z 365.2 (M+H)⁺

Compound 452—N2-isopropyl-N4-(4-(methylsulfonyl)phenyl)-6-phenyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.41-8.31 (m, 2H), 7.91-7.88 (m, 4H), 7.63-7.45 (m, 4H), 5.51-5.08 (m, 1H), 4.48-4.19 (m, 1H), 3.05 (s, 3H), 1.30 (d, 6H). LC-MS: m/z 384.2 (M+H)⁺

Additional compounds of Formula I were prepared according to Scheme 2 using the appropriate reagents are as follows:

Compound 453—6-(3,6-Difluoro-pyridin-2-yl)-N-isopropyl-N′-(3-methanesulfonyl-phenyl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.90-8.40 (m, 1H), 8.13-8.11 (m, 1H), 7.82-7.80 (m, 2H), 7.71-7.67 (m, 1H), 7.59-7.57 (m, 1H), 4.42 (m, 1H), 3.16 (s, 1H), 1.37-1.36 (d, J=6.8 Hz, 6H). LC-MS: m/z 421.2 (M+H)⁺.

Compound 455—N-(3,5-Difluoro-phenyl)-N′-isopropyl-6-(4-trifluoromethyl-pyrimidin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ 10.39-10.42 (m, 1H), 9.36-9.38 (m, 1H), 8.19-8.34 (m, 2H), 7.68-7.71 (m, 2H), 6.79-6.84 (m, 1H), 4.10-4.15 (m, 1H), 1.18-1.23 (m, 6H). LC-MS: m/z 412.3 (M+H)⁺.

Compound 456—N-(5-Fluoro-pyridin-3-yl)-6-(3-fluoro-pyridin-2-yl)-N′-isopropyl-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.70 (s, 1H), 8.61-8.40 (m, 1H), 8.15-8.10 (m, 2H), 7.87-7.83 (m, 1H), 7.71-7.67 (m, 1H), 4.31-4.27 (m, 1H), 1.35-1.27 (m, 6H). LC-MS: m/z 344.2 (M+H)⁺.

Compound 458—6-(4-Amino-pyrimidin-2-yl)-N-(3,5-difluoro-phenyl)-N′-isopropyl-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ (s, 1H), 7.50-7.52 (d, J=8.8 Hz, 2H), 6.58-6.67 (m, 2H), 4.23-4.55 (m, 1H), 1.25-1.34 (m, 6H). LC-MS: m/z 359.0 (M+H)⁺.

Compound 459—N-(3,5-Difluoro-phenyl)-6-(3-fluoro-pyridin-2-yl)-N′-isopropyl-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.54-8.53 (d, 1H), 7.82-7.78 (m, 1H), 7.66-7.61 (m, 1H), 7.55-7.50 (m, 2H), 6.60-6.53 (m, 1H), 4.39-4.24 (m, 1H), 1.34-1.23 (m, 6H). LC-MS: m/z 361.2 (M+H)⁺.

Compound 460—N-(3,5-Difluoro-phenyl)-6-(3,6-difluoro-pyridin-2-yl)-N′-isopropyl-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.03-7.97 (m, 1H), 7.51-7.49 (m, 2H), 7.41-7.30 (m, 1H), 6.68-6.64 (m, 1H), 4.31-4.24 (m, 1H), 1.35-1.27 (m, 6H). LC-MS: m/z 379.1 (M+H)⁺.

Compound 461—N-(3,5-Difluoro-phenyl)-6-(3-fluoro-6-methoxy-pyridin-2-yl)-N′-isopropyl-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 7.83-7.79 (m, 1H), 7.54-7.51 (m, 2H), 7.22-7.19 (m, 1H), 6.78 (m, 1H), 4.35-4.31 (m, 1H), 4.08 (s, 3H), 1.39-1.31 (m, 6H). LC-MS: m/z 391.3 (M+H)⁺.

Compound 462—6-(6-Amino-pyridin-2-yl)-N-(6-fluoro-pyridin-3-yl)-N′-isopropyl-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.65-8.58 (m, 1H), 8.50-8.30 (m, 1H), 8.20-7.61 (m, 2H), 7.20-6.90 (m, 2H), 4.60-4.20 (m, 1H), 1.30 (d, 6H). LC-MS: m/z 340.9 (M+H)⁺.

Compound 463—N-(3,5-Difluoro-phenyl)-N′-isopropyl-6-(6-prop-1-ynyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.39-8.34 (m, 1H), 7.94-7.90 (t, 1H), 7.60-7.52 (m, 3H), 6.62-6.57 (m, 1H), 4.50-4.24 (m, 1H), 2.12 (s, 3H), 1.34-1.29 (m, 6H). LC-MS: m/z 380.9 (M+H)⁺.

Compound 464—N-(3,5-Difluoro-phenyl)-N′-isopropyl-6-(6-methylamino-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 7.72-7.67 (m, 1H), 7.63-7.52 (m, 3H), 6.68-6.65 (d, 1H), 6.60-6.56 (m, 1H), 4.36-4.16 (m, 2H), 2.98 (s, 3H). LC-MS: m/z 441.9 (M+H)⁺.

Compound 465—N-(3,5-Difluoro-phenyl)-6-(6-methylamino-pyridin-2-yl)-N′-(2,2,2-trifluoro-ethyl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ 8.00-7.85 (m, 1H), 7.84-7.78 (m, 1H), 7.50-7.45 (m, 1H), 7.19-7.17 (m, 1H), 6.68-6.60 (m, 1H), 4.26-4.23 (m, 1H), 3.14-3.12 (d, 3H), 1.33-1.28 (m, 6H). LC-MS: m/z 372.3 (M+H)⁺.

Compound 466—6-(2,6-difluorophenyl)-N2-isopropyl-N4-(3-(methylsulfonyl)phenyl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄): δ 9.0-8.4 (m, 1.0H), 8.05-7.75 (m, 1H), 7.75-7.4 (m, 3H), 7.15-7.05 (m, 2H), 4.45-4.1 (m, 1H), 3.15 (s, 3H), 1.3 (d, J=6.4, 6H).

LC-MS: m/z 419.8 (M+H)⁺.

Compound 467—N-(3-Fluoro-phenyl)-N′-isopropyl-6-(6-prop-1-ynyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.33-8.31 (m, 1H), 7.92-7.82 (m, 2H), 7.58-7.56 (m, 1H), 7.40-7.30 (m, 2H), 6.78-6.76 (m, 1H), 4.25-4.22 (m, 1H), 2.10 (s, 3H), 1.33-1.28 (m, 6H). LC-MS: m/z 363.2 (M+H)⁺.

Compound 468—6-(6-Amino-pyridin-2-yl)-N-isopropyl-N′-(5-trifluoromethyl-pyridin-3-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 9.21 (s, 2H), 8.48 (s, 1H), 7.70-7.58 (m, 2H), 6.74-6.72 (m, 1H), 4.22 (m, 1H), 1.31-1.29 (d, J=8.0 Hz, 6H). LC-MS: m/z 391.3 (M+H)⁺.

Compound 469—6-[4-(3,5-Difluoro-phenylamino)-6-isopropylamino-[1,3,5]triazin-2-yl]-5-fluoro-pyridin-2-ol

¹H NMR (METHANOL-d₄) δ 7.71-7.65 (m, 2H), 7.49-7.47 (m, 2H), 6.77-6.72 (m, 1H), 6.55-6.53 (m, 1H), 4.40-4.18 (m, 1H), 1.30-1.25 (m, 6H). LC-MS: m/z 377.2 (M+H)⁺.

Compound 470—6-(6-Amino-pyridin-2-yl)-N-(5-fluoro-pyridin-3-yl)-N′-isopropyl-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 9.38-9.35 (m, 1H), 8.77-8.63 (m, 2H), 8.09-7.86 (m, 2H), 7.25-7.22 (m, 1H), 4.28-4.25 (m, 1H), 1.34 (dd, 6H). LC-MS: m/z 341.1 (M+H)⁺.

Compound 471—N-(3-Fluoro-phenyl)-N′-isopropyl-6-(2-methyl-oxazol-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.46-8.43 (m, 1H), 7.85-7.82 (m, 1H), 7.40-7.27 (m, 2H), 6.78-6.74 (m, 1H), 4.25-4.22 (m, 1H), 2.57 (s, H), 1.29 (dd, J=13.2 Hz, 6.4 Hz, 6H). LC-MS: m/z 329.2 (M+H)⁺.

Compound 472—N-(3-Fluoro-phenyl)-N′-isopropyl-6-(5-methyl-isoxazol-3-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 7.87-7.82 (m, 1H), 7.41-7.38 (m, 1H), 7.34-7.26 (m, 1H), 6.77-6.68 (m, 2H), 4.38-4.21 (m, 1H), 2.53 (s, H), 1.29 (dd, J=10.8 Hz, 6.8 Hz, 6H). LC-MS: m/z 329.3 (M+H)⁺.

Compound 473—6-(2,6-Difluoro-phenyl)-N-(3-fluoro-phenyl)-N′-isopropyl-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 6.98-6.97 (m, 1H), 6.69-6.54 (m, 3H), 6.28-6.23 (m, 2H), 5.92 (m, 1H), 3.47-3.44 (m, 1H), 0.49 (d, 6H). LC-MS: m/z 359 (M+H)⁺.

Compound 474—6-(2,6-Difluoro-phenyl)-N-(5-fluoro-pyridin-3-yl)-N′-isopropyl-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ 9.23-9.01 (m, 1H), 8.78-8.43 (m, 2H), 7.63-7.61 (m, 1H), 7.20-7.16 (m, 2H), 4.31-4.20 (m, 1H), 1.33 (d, 6H). LC-MS: m/z 361.1 (M+H)⁺.

Compound 475—N-(3-Fluoro-phenyl)-N′-isopropyl-6-(4-trifluoromethyl-thiazol-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.71 (s, 1H), 8.24 (d, J=7.6 Hz, 1H), 8.00-7.86 (m, 1H), 7.52-7.50 (m, 1H), 7.36-7.27 (m, 1H), 4.25-4.08 (m, 1H), 1.21 (d, J=6.4 Hz, 6H). LC-MS: m/z 399.0 (M+H)⁺.

Compound 476—N-(3,5-Difluoro-phenyl)-N′-isopropyl-6-(2-methyl-oxazol-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.67 (br, 1H), 7.42 (d, J=9.2 Hz, 2H), 6.77-6.72 (m, 1H), 4.28-4.23 (m, 1H), 2.56 (s, 3H), 1.28 (d, J=9.6 Hz, 6H). LC-MS: m/z 347.1 (M+H)⁺.

Compound 477—6-(6-amino-3-fluoropyridin-2-yl)-N2-(3,5-difluorophenyl)-N4-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 7.55-7.45 (m, 2H), 7.45-7.35 (m, 1H), 7.0-6.9 (m, 1H), 6.65-6.5 (m, 1H), 4.4-4.15 (m, 1H), 1.4-1.25 (m, 6H). LC-MS: m/z 376.2 (M+H)⁺.

Compound 478—6-(4-Amino-pyrimidin-2-yl)-N-cyclopropylmethyl-N′-(3,5-difluoro-phenyl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.26-8.25 (d, J=5.6 Hz, 1H), 7.532-7.490 (m, 2H), 6.66-6.57 (m, 2H), 3.43-3.23 (m, 2H), 1.16-1.18 (m, 1H), 0.58-0.51 (m, 2H), 0.34-0.29 (m, 2H). LC-MS: m/z 371.2 (M+H)⁺.

Compound 479—6-(4-Amino-pyrimidin-2-yl)-N-tert-butyl-N′-(3,5-difluoro-phenyl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.28-8.26 (d, J=5.2 Hz, 1H), 7.49-7.47 (d, J=8 Hz, 2H), 6.66-6.60 (m, 2H), 1.54 (s, 9H). LC-MS: m/z 373.2 (M+H)⁺.

Compound 480—6-(4-Amino-pyrimidin-2-yl)-N-(3,5-difluoro-phenyl)-N′-(2,2,2-trifluoro-ethyl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.29-8.26 (m, 1H), 7.55-7.44 (m, 2H), 6.67-6.59 (m, 2H), 4.44-4.20 (m, 2H). LC-MS: m/z 399.2 (M+H)⁺.

Compound 481—6-(4-amino-6-(trifluoromethyl)pyrimidin-2-yl)-N2-(3,5-difluorophenyl)-N4-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 7.53 (d, J=8.0 Hz, 2H), 6.98 (s, 1H), 6.63-6.55 (m, 1H), 4.50-4.23 (m, 1H), 1.34 (d, J=6.2 Hz, 6H). LC-MS: m/z 427.1 (M+H)⁺.

Compound 482—6-(2-Amino-pyrimidin-4-yl)-N-(3,5-difluoro-phenyl)-N′-isopropyl-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ 8.47-8.46 (m, 1H), 7.60-7.48 (m, 3H), 4.26-4.22 (m, 1H), 1.33-1.26 (m, 6H). LC-MS: m/z 372.3 (M+H)⁺.

Compound 483—6-(4,6-dichloropyridin-2-yl)-N2-isopropyl-N4-(3-(methylsulfonyl)phenyl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d6) δ 10.40 (br, 1H), 8.88 (s, 1H), 8.34-8.18 (m, 2H), 7.99 (s, 1H), 7.81-7.79 (m, 1H), 7.56-7.53 (m, 2H), 4.23 (br, 1H), 3.18 (m, 3H), 1.20 (s, 6H). LC-MS: m/z 475.0 (M+H)⁺.

Compound 484—6-(3-fluoro-6-(trifluoromethyl)pyridin-2-yl)-N2-isopropyl-N4-(3-(methylsulfonyl)phenyl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ 8.52 (s, 1H), 8.03-7.95 (m, 2H), 7.79 (br, 1H), 7.61-7.53 (m, 2H), 4.36-4.28 (m, 1H), 3.11 (d, 3H), 1.31-1.21 (m, 6H). LC-MS: m/z 471.1 (M+H)⁺.

Compound 485—6-(6-amino-4-chloropyridin-2-yl)-N²-(3,5-difluorophenyl)-N⁴-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 7.66 (s, 1H), 7.49-7.47 (d, 2H), 6.73 (s, 1H), 6.57-6.50 (m, 1H), 4.47-4.09 (m, 1H), 1.35-1.26 (m, 6H). LC-MS: m/z 392.1 (M+H)⁺.

Compound 486—6-(4-chloro-6-methoxypyridin-2-yl)-N²-(3,5-difluorophenyl)-N⁴-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.05 (s, 1H), 7.52 (br, 2H), 7.00 (s, 1H), 6.58-6.52 (m, 1H), 4.40-4.21 (m, 1H), 4.07 (s, 3H), 1.31-1.29 (d, 6H). LC-MS: m/z 407.1 (M+H)⁺.

Compound 487—(2-(4-((3,5-difluorophenyl)amino)-6-(isopropylamino)-1,3,5-triazin-2-yl)-6-(trifluoromethyl)pyridin-4-yl)methanol

¹H NMR (METHANOL-d₄) δ 8.66 (s, 1H), 7.92 (s, 1H), 7.54-7.52 (d, J=8 Hz, 2H), 6.60-6.54 (m, 1H), 4.83 (s, 2H), 4.47-4.22 (m, 1H), 1.33-1.31 (d, J=6.4 Hz, 6H). LC-MS: m/z 441.1 (M+H)⁺.

Compound 488—6-(6-(1,1-difluoroethyl)-4-fluoropyridin-2-yl)-N²-isopropyl-N⁴-(3-(methylsulfonyl)phenyl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.95 (m, 1H), 8.3 (m, 1H), 7.75 (m, 1H), 7.6-7.5 (m, 3H), 4.4 (m, 1H), 3.15 (s, 3H), 2.2-2.0 (m, 3H), 1.4-1.3 (m, 6H).

Compound 489—6-(6-amino-4-fluoropyridin-2-yl)-N²-(3,5-difluorophenyl)-N⁴-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO) δ 10.15 (m, 1H), 8.0 (m, 1H), 7.7-7.5 (m, 2H), 7.2 (m, 1H), 6.75 (m, 1H) 6.36 (m, 1H), 6.26 (m, 2H), 4.4-4.0 (m, 1H), 1.2 (m, 6H).

Compound 490—(2-chloro-6-(4-((3,5-difluorophenyl)amino)-6-(isopropylamino)-1,3,5-triazin-2-yl)pyridin-4-yl)methanol

¹H NMR (METHANOL-d₄) δ 10.28-10.24 (m, 1H), 8.29 (s, 1H), 8.16-7.88 (m, 1H), 7.71-7.54 (m, 2H), 7.54-7.53 (d, 1H), 6.80-6.72 (m, 1H), 5.63-5.60 (q, 2H), 4.63-4.61 (m, 1H), 4.33-4.05 (m, 1H), 1.21-1.19 (d, 6H). LC-MS: m/z 407.1 (M+H)⁺.

Compound 491—6-(6-aminopyridin-2-yl)-N2-(3,5-difluorophenyl)-N4-(2,2,2-trifluoroethyl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.10-8.07 (m, 1H), 7.93-7.86 (m, 1H), 7.54-7.41 (m, 2H), 7.25-7.22 (m, 1H), 6.69-6.65 (m, 1H), 4.42-4.25 (m, 2H). LC-MS: m/z 398.2 (M+H)⁺.

Compound 492—6-(6-aminopyridin-2-yl)-N2-(3-fluorophenyl)-N4-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.04-8.00 (m, 1H), 7.83 (br, 2H), 7.40-7.37 (m, 1H), 7.33-7.28 (m, 1H), 7.18-7.16 (m, 1H), 6.79 (t, 1H), 4.51-4.25 (m, 1H), 1.29 (d, 6H). LC-MS: m/z 340.2 (M+H)⁺.

Compound 493—6-(6-amino-3-fluoropyridin-2-yl)-N2-(tert-butyl)-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine Step 1: Preparation of (E)-2-(tert-butyl)-1-(diaminomethylene)guanidine

To a mixture of 1-phenyl-2-cyanoguanidine (10 g, 0.119 mol) in ethanol/water (176.5 mL/70.6 mL) was added CuSO₄.5H₂O (14.9 g, 0.059 mol), followed by 2-methylpropan-2-amine (11.3 g, 0.155 mol). The mixture was heated to reflux for 16 hours. To the mixture was added water (137 mL) and aq.HCl (59.5 mL in 100 mL of water) at 25-30° C. The resultant mixture was stirred at r.t. for 30 min. Then Na₂S (47.6 g in 100 mL of water) was added and stirred for another 30 min. The insoluble CuS was filtered off. The filtrate was cooled to 10° C. and added aqueous NaOH (27 g NaOH in 100 mL water) dropwise. The mixture was extracted with dichloromethane (100 mL×3). The aqueous layer was concentrated and the residue was added dichloromethane (200 mL) and the mixture was stirred for 1 hour and the mixture was filtrated. The filtrated was concentrated to give (E)-2-(tert-butyl)-1-(diaminomethylene)guanidine as a brown solid.

¹H NMR (CDCl₃) δ 1.32-1.37 (m, 9H).

Step 2: Preparation of N2-(tert-butyl)-6-(3,6-difluoropyridin-2-yl)-1,3,5-triazine-2,4-diamine

The mixture of (E)-2-(tert-butyl)-1-(diaminomethylene) guanidine (1.2 g, 7.6 mmol), methyl 3,6-difluoropicolinate (1.3 g, 7.6 mol) and MeONa (0.9 g, 15.2 mol) in MeOH (25 mL) was stirred for 5 hours at r.t. TLC showed the reaction was completed. The mixture was poured into water (15 mL), extracted with EA (50 mL) for 3 times. The combine organic layer was dried, concentrated and purified by Prep-HPLC to give N2-(tert-butyl)-6-(3,6-difluoropyridin-2-yl)-1,3,5-triazine-2,4-diamine as a white solid.

¹H NMR (CDCl₃) δ 7.5 (m, 1H), 7.0 (m, 1H), 5.4 (B, 1H), 5.1-5.2 (br s, 2H), 4.4 (m, 9H).

Step 3: Preparation of N²-(tert-butyl)-6-(3,6-difluoropyridin-2-yl)-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

To the mixture of N²-(tert-butyl)-6-(3,6-difluoropyridin-2-yl)-1,3,5-triazine-2,4-diamine (0.4 g, 1.4 mmol), 4-chloro-2-(trifluoromethyl)pyridine (0.31 g, 1.7 mmol), Cs2CO3 (0.7 g, 2.1 mmol) and X-phos (0.048 g, 0.07 mmol) in dioxane (10 mL) was added Pd(OAc)2 under N2 protection. The reaction mixture was heated to 80 deg and stirred for 2 hours. TLC showed the reaction was completed. the reaction mixture was added water (10 mL), extracted with EA (100 mL) for 3 times. The combine organic layer was dried and concentrated. The residue was purified by a standard method to give N²-(tert-butyl)-6-(3,6-difluoropyridin-2-yl)-N⁴-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine.

¹H NMR (CDCl₃) δ 8.6-8.4 (m, 2H), 7.65 (m, 1H), 7.5-7.4 (m, 2H), 7.1 (m, 1H), 5.7 (m, 1H), 1.45 (m, 9H).

Step 4: Preparation of 6-(6-amino-3-fluoropyridin-2-yl)-N2-(tert-butyl)-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine—Compound 494

To the solution of N²-(tert-butyl)-6-(3,6-difluoropyridin-2-yl)-N⁴-(2-(trifluoromethyl)pyridine-4-yl)-1,3,5-triazine-2,4-diamine (300 mg, 0.7 mmol) and CuI (134 mg, 0.7 mmol) in THF (5 mL) was added sat.NH₃/EtOH (15 mL) solution. The reaction mixture was stirred in a seal reactor at 130 deg for 10 hours. LCMS showed the reaction was completed. The solvent was removed and the residue was purified by a standard method to give 6-(6-amino-3-fluoropyridin-2-yl)-N²-(tert-butyl)-N⁴-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine.

¹H NMR (CDCl₃) δ 8.63 (m, 1H), 8.45 (m, 1H), 7.85 (m, 1H), 7.5-7.4 (m, 1H), 6.75 (m, 1H), 1.5 (m, 9H).

According to the general strategy outlined in Scheme 3, Step 2, the following intermediates were prepared:

6-(4-(trifluoromethyl)pyrimidin-2-yl)-1,3,5-triazine-2,4(1H,3H)-dione

LCMS: m/z 260.1 (M+H)⁺.

Methyl 6-(4,6-dioxo-1,4,5,6-tetrahydro-1,3,5-triazin-2-yl)pyridin-2-ylcarbamate

LCMS: m/z 264.2 (M+H)⁺.

6-(4-methoxypyridin-2-yl)-1,3,5-triazine-2,4(1H,3H)-dione

LCMS: m/z 221.1 (M+H)⁺.

According to the general strategy outlined in Scheme 3, Step 3, the following intermediates were prepared:

2,4-dichloro-6-(4-(trifluoromethyl)-pyrimidin-2-yl)-1,3,5-triazine

LCMS: m/z 296.0 (M+H)⁺.

2,4-Dichloro-6-(6-difluoromethyl-pyridin-2-yl)-[1,3,5]triazine

LCMS: m/z 277.0 (M+H)⁺.

2,4-Dichloro-6-[6-(1,1-difluoroethyl)-pyridin-2-yl]-[1,3,5]triazine

LCMS: m/z 290.9 (M+H)⁺.

Methyl 6-(4,6-dichloro-1,3,5-triazin-2-yl)-pyridin-2-ylcarbamate

LCMS: m/z 300.1 (M+H)⁺.

2,4-Dichloro-6-(4-methoxypyridin-2-yl)-1,3,5-triazine

LCMS: m/z 257.1 (M+H)⁺.

According to the general strategy outlined in Scheme 3, steps 4-5, the following compounds were prepared from appropriate reagents and intermediates:

Compound 494—N-[2-(1, 1-Difluoro-ethyl)pyridin-4-yl]-N′-isopropyl-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5] triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.67 (s, 1H), 8.51-8.18 (m, 3H), 7.97-7.73 (m, 2H), 4.51-4.32 (m, 1H), 1.97 (t, J=18.8 Hz, 2H), 1.32 (d, J=6.4 Hz, 6H). LC-MS: m/z 440.3 (M+H)⁺.

Compound 495—3-[4-(6-Chloro-pyridin-2-yl)-6-(2-trifluoromethyl-pyridin-4-ylamino)-[1,3,5]triazin-2-ylamino]-2,2-dimethyl-propan-1-ol

¹H NMR (METHANOL-d₄) δ 8.63-8.45 (m, 3H), 8.44-7.99 (m, 2H), 7.97-7.62 (m, 1H), 3.49 (s, 1H), 3.43 (s., 1H), 3.40 (s, 1H), 3.23 (s., 1H), 0.98 (d., J=6.4 Hz, 6H). LC-MS: m/z 454.3 (M+H)⁺.

Compound 496—2-{4-[4-Isopropylamino-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazin-2-ylamino]-pyridin-2-yl}-propan-2-ol

¹H NMR (METHANOL-d₄) δ 8.66 (s, 1H), 8.29-8.11 (m, 3H), 7.88 (s, 1H), 7.58-7.56 (m, 1H), 4.40-4.29 (m., 1H), 1.49 (s, 6H), 1.25 (d., J=6.4 Hz, 6H). LC-MS: m/z 434.3 (M+H)⁺.

Compound 497—3-[4-(6-Chloro-pyridin-2-yl)-6-isopropylamino-[1,3,5]triazin-2-ylamino]-N-cyclopropylmethyl-benzenesulfonamide

¹H NMR (METHANOL-d₄) δ 8.70 (s, 1H), 8.50 (m, 1H), 8.14-8.10 (m, 1H), 7.82-7.80 (m, 1H), 7.69-7.67 (m., 2H), 7.58 (m, 1H), 4.42 (m, 1H), 2.78-2.76 (d., J=6.8 Hz, 2H), 1.36-1.28 (d, J=10 Hz, 6H), 0.87-0.81 (m, 1H), 0.43-0.38 (m, 2H), 0.10-0.07 (m, 2H). LC-MS: m/z 474.3 (M+H)⁺.

Compound 498—5-[4-(6-Chloro-pyridin-2-yl)-6-(2,2-dimethyl-propylamino)-[1,3,5]triazin-2-ylamino]-nicotinonitrile

1H NMR (METHANOL-d₄) δ 9.01-8.94 (m, 2H), 8.53-8.41 (m, 2H), 8.00-7.96 (m, 1H), 7.62-7.60 (m, 1H), 3.35 (s, 3H), 1.00 (s, 9H). LC-MS: m/z 395.2 (M+H)⁺.

Compound 499—6-(6-Chloro-pyridin-2-yl)-N-(2-methoxy-1-methyl-ethyl)-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.62-8.43 (m, 3H), 8.25-8.61 (m, 3H), 4.40-4.36 (m, 1H), 3.56-3.48 (m, 2H), 3.47 (s, 3H), 1.32-1.26 (s, 3H). LC-MS: m/z 440.3 (M+H)⁺.

Compound 500—1-[4-(2-Fluoro-pyridin-4-ylamino)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazin-2-ylamino]-2-methyl-propan-2-ol

Using the standard procedure described above except replacing t-BuONa by Cs₂CO₃ yielded the title compound.

¹H NMR (METHANOL-d₄) δ 8.79-8.81 (d, J=8 Hz, 1H), 8.37-8.43 (m, 1H), 8.20-8.24 (m, 2H), 7.56-7.72 (m, 2H), 3.65 (s, 2H), 1.36 (s, 6H). LC-MS: m/z 424.2 (M+H)⁺.

Compound 501—N-Isopropyl-N′-(6-methyl-pyridazin-4-yl)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

Using the standard procedure described above except replacing t-BuONa by Cs₂CO₃ yielded the title compound.

¹H NMR (METHANOL-d₄) δ 9.30-8.85 (m, 2H), 8.78-8.80 (d, J=8 Hz, 1H), 8.29-8.28 (m, 1H), 8.07-8.15 (m, 1H), 4.36-4.55 (m, 1H), 2.87 (s, 3H), 1.38-1.41 (m, 6H). LC-MS: m/z 391.2 (M+H)⁺.

Compound 502—4-[4-(6-Chloro-pyridin-2-yl)-6-(2-trifluoromethyl-pyridin-4-ylamino)-[1,3,5]triazin-2-ylamino]-piperidine-1-carboxylic acid tert-butyl ester

¹H NMR (CDCl3-d₆) δ 8.51-8.55 (m, 2H), 8.27 (d, J=7.6 Hz, 1H), 7.77 (t, J=8 Hz, 1H), 7.45-7.50 (m, 2H), 7.28-7.33 (m., 1H), 5.65 (d, J=7.6 Hz, 1H), 3.95-4.11 (m, 3H), 2.88-2.93 (m., 2H), 2.02 (d, J=11.2 Hz, 2H), 1.41-1.51 (m, 11H). LC-MS: m/z 552.0 (M+H)⁺.

Compound 503—N-(5-Fluoro-pyridin-3-yl)-N′-isopropyl-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.66-8.62 (m, 2H), 8.54 (br, 1H), 8.17 (t, J=7.8 Hz, 1H), 8.09-8.05 (m, 1H), 7.93 (d, J=7.6 Hz, 1H), 4.24-4.21 (m, 1H), 1.26 (d, J=4.2 Hz, 6H). LC-MS: m/z 394.2 (M+H)⁺.

N-(6-Fluoro-pyridin-3-yl)-N′-isopropyl-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.53-8.50 (m, 2H), 8.46-8.24 (m, 1H), 8.07 (t, J=7.8 Hz, 1H), 7.84 (d, J=7.6 Hz, 1H), 6.97-6.94 (m, 1H), 4.35-4.13 (m, 1H), 1.19 (d, J=6.4 Hz, 6H). LC-MS: m/z 394.1 (M+H)⁺.

Compound 504—N-(3-Oxa-bicyclo[3.1.0]hex-6-yl)-N′-(2-trifluoromethyl-pyridin-4-yl)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.60 (dd, J=8.0 Hz, 2.0, 1H) 8.53 (dd, J=5.6 Hz, 1.6, 1H), 8.34 (s, 1H), 8.26-8.21 (m, 2H), 8.01-7.97 (m, 1H), 4.10 (d, J=7.4 Hz, 2H), 3.80 (d, J=8.4 Hz, 2H), 2.80-2.77 (m, 1H), 2.06 (s, 2H). LC-MS: m/z 484.3 (M+H)⁺.

Compound 505—4-[4-(3-Oxa-bicyclo[3.1.0]hex-6-ylamino)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazin-2-ylamino]-pyridine-2-carbonitrile

Using the standard procedure described above except replacing t-BuONa by Cs₂CO₃ to yield the title compound.

¹H NMR (METHANOL-d₄) δ 8.69-8.51 (m, 3H), 8.24-8.20 (m, 1H), 8.09-7.98 (m, 2H), 4.12 (d, J=9.2 Hz, 2H), 3.84 (d, J=8.4 Hz, 2H). 2.75 (s, 1H), 2.02 (s, 2H). LC-MS: m/z 441.3 (M+H)⁺.

Compound 506—N-(6-Fluoro-pyridin-3-yl)-N′-(3-oxa-bicyclo[3.1.0]hex-6-yl)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.69-8.61 (m, 2H), 8.38 (br, 1H), 8.16 (t, J=8.0 Hz, 1H), 7.92 (d, J=8.4 Hz, 1H), 7.05 (dd, J=6.4 Hz, 2.4, 1H), 4.04 (d, J=8.4 Hz, 2H), 3.78 (d, J=8.4 hz, 2H), 2.64 (s, 1H), 1.94 (s, 1H). LC-MS: m/z 433.9 (M+H)⁺.

N-(2-Fluoro-pyridin-4-yl)-N′-(3-oxa-bicyclo[3.1.0]hex-6-yl)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.68-8.66 (m, 1H), 8.24-7.97 (m, 4H), 7.50 (d, J=5.2 Hz, 1H), 4.12 (d, J=8.4 Hz, 2H), 3.83 (d, J=8.0 Hz, 2H), 2.71 (s, 1H), 2.05-1.99 (m, 2H). LC-MS: m/z 433.9 (M+H)⁺.

Compound 507—N-(3-Oxa-bicyclo[3.1.0]hex-6-yl)-N′-(5-trifluoromethyl-pyridin-3-yl)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 9.38 (br, 1H), 8.82-8.42 (m, 4H), 8.24 (d, J=8.4 Hz, 1H), 4.05 (d, J=8.4 Hz, 2H), 3.79 (d, J=8.4 Hz, 2H), 2.81 (s, 1H), 2.15 (s, 2H). LC-MS: m/z 484.3 (M+H)⁺.

Compound 508—N-(2-Fluoro-pyridin-4-yl)-N′-(3-oxa-bicyclo[3.1.0]hex-6-yl)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

Using the standard procedure described above except replacing t-BuONa by Cs₂CO₃ to yield the title compound.

¹H NMR (METHANOL-d₄) δ 8.48-8.50 (d, J=7.2 Hz, 1H), 7.97-8.15 (m, 3H), 7.79-7.96 (m, 1H), 7.48-7.54 (m, 1H), 4.13-4.15 (d, J=8.8 Hz, 2H), 3.83-3.85 (d, J=8 Hz, 2H), 2.78 (s, 1H), 2.07-2.10 (d, J=13.2 Hz, 2H). LC-MS: m/z 400.1 (M+H)⁺.

Compound 509—N-(3-Oxa-bicyclo[3.1.0]hex-6-yl)-N′-(2-trifluoromethyl-pyridin-4-yl)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

Using the standard procedure described above except replacing t-BuONa by Cs₂CO₃ to yield the title compound.

¹H NMR (METHANOL-d₄) δ 8.47-8.66 (m, 2H), 8.07-8.28 (m, 3H), 7.76-7.78 (d, J=8 Hz, 1H), 4.06-4.14 (m, 2H), 3.80-3.82 (d, J=8.4 Hz, 2H), 2.82 (s, 1H), 2.04-2.16 (m, 2H). LC-MS: m/z 450.1 (M+H)⁺.

Compound 510—N-(3-Oxa-bicyclo[3.1.0]hex-6-yl)-N′-(5-trifluoromethyl-pyridin-3-yl)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

Using the standard procedure described above except replacing t-BuONa by Cs₂CO₃ to yield the title compound.

¹H NMR (METHANOL-d₄) δ 9.05-9.20 (m, 1H), 8.36-8.45 (m, 3H), 7.96-7.97 (m, 1H), 7.57-7.60 (d, J=7.6 Hz, 1H), 4.04-4.06 (d, J=8.4 Hz, 2H), 3.75-3.77 (d, J=8.4 Hz, 2H), 2.78 (s, 1H), 1.94 (s, 2H). LC-MS: m/z 450.1 (M+H)⁺.

Compound 511—6-(6-Chloro-pyridin-2-yl)-N-(5-fluoro-pyridin-3-yl)-N′-(3-oxa-bicyclo[3.1.0]hex-6-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ 10.50-10.60 (m, 1H), 8.79-8.91 (m, 1H), 8.43-8.48 (m, 2H), 8.19-8.29 (m., 2H), 8.05-8.11 (m, 1H), 7.67-7.73 (m, 1H), 3.95-4.06 (m, 2H), 3.68-3.70 (m, 2H), 3.32-3.33 (m, 1H), 1.95 (s, 2H). LC-MS: m/z 400.2 (M+H)⁺.

Compound 512—6-(6-Chloro-pyridin-2-yl)-N-(6-fluoro-pyridin-3-yl)-N′-(3-oxa-bicyclo[3.1.0]hex-6-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ 10.36 (br, 1H), 8.76-8.93 (m, 1H), 8.30-8.43 (m, 3H), 8.04-8.10 (m., 1H), 7.70-7.72 (m, 1H), 7.13-7.20 (m, 1H), 3.96-3.94 (m, 2H), 3.65-3.70 (m, 2H), 3.32-3.33 (m, 1H), 2.09 (s, 2H). LC-MS: m/z 400.2 (M+H)⁺.

Compound 513—6-(6-Chloro-pyridin-2-yl)-N-[2-(1,1-difluoro-ethyl)-pyridin-4-yl]-N′-isopropyl-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.51-8.14 (In, 3H), 7.96-7.59 (m, 3H), 4.52-4.26 (m, 1H), 1.97 (t, J=18.8 Hz, 2H), 1.31 (t., J=6.4 Hz, 6H). LC-MS: m/z 406.3 (M+H)⁺.

Compound 514—2-{4-[4-(6-Chloro-pyridin-2-yl)-6-isopropylamino-[1,3,5]triazin-2-ylamino]-pyridin-2-yl}-propan-2-ol

¹H NMR (METHANOL-d₄) δ 8.48-8.30 (m, 3H), 7.99-7.95 (m, 1H), 7.77-7.61 (m, 2H), 4.51-4.37 (m, 1H), 1.57 (s., 6H), 1.30 (d., J=6.4 Hz, 6H). LC-MS: m/z 400.3 (M+H)⁺.

Compound 515—N-(3,5-Difluoro-phenyl)-N′-(2-methyl-cyclopropyl)-6-pyridin-2-yl-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.72-8.48 (m, 2H), 8.08-7.57 (m, 4H), 6.58 (s, 1H), 2.27-2.57 (m, 1H), 1.20 (s., 3H), 0.99-0.75 (m, 2H), 0.64-0.51 (s, H). LC-MS: m/z 455.2 (M+H)⁺.

Compound 516—N-(2-Methyl-cyclopropyl)-6-pyridin-2-yl-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.73-7.98 (m, 6H), 7.61-7.58 (m, 1H), 2.79-2.54 (m, 1H), 1.20 (d, J=6.0 Hz, 3H), 0.85-0.81 (m., 1H), 0.71-0.67 (m, 2H). LC-MS: m/z 388.3 (M+H)⁺.

Compound 517—N-(2,2-Dimethyl-propyl)-6-pyridin-2-yl-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.75-8.49 (m, 4H), 8.03-7.76 (m, 1H), 7.62-7.59 (m, 2H), 3.41 (s, 2H), 0.99 (s., 9H). LC-MS: m/z 404.3 (M+H)⁺.

Compound 518—3-[4-(6-Chloro-pyridin-2-yl)-6-isopropylamino-[1,3,5]triazin-2-ylamino]-N-(2,2,2-trifluoro-ethyl)-benzenesulfonamide

¹H NMR (DMSO-d₆) δ 8.74 (s, 1H), 8.70-8.40 (m, 1H), 8.37-8.30 (m, 1H), 8.30-8.11 (m, 1H), 8.09-8.01 (m., 1H), 7.84-7.82 (m, 1H), 7.69 (m, 1H), 7.54 (m, 1H), 7.48-7.44 (m, 1H), 4.33-4.22 (m, 1H), 3.72-3.62 (m, 2H), 1.23-1.20 (d, J=12 Hz, 6H). LC-MS: m/z 501.8 (M+H)⁺.

Compound 520—1-[4-(3,5-Difluoro-phenylamino)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazin-2-ylamino]-propan-2-ol

¹H NMR (METHANOL-d₄) δ 8.66-8.68 (m, 1H), 8.19-8.23 (m, 1H), 7.96-7.98 (m, 1H), 7.51-7.57 (m., 2H), 6.57-6.60 (m, 1H), 3.56-3.61 (d, J=20 Hz, 2H), 1.29 (s, 6H). LC-MS: m/z 441.2 (M+H)⁺.

Compound 521—N-(2,2-Dimethyl-propyl)-N′-pyrimidin-5-yl-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 9.28-9.31 (m, 2H), 8.79-8.82 (m, 1H), 8.67-8.69 (m, 1H), 8.19-8.23 (m, 1H), 7.96-7.98 (m, 1H), 3.37-3.45 (m, 1H), 3.30-3.37 (m, 1H), 1.01 (s, 9H). LC-MS: m/z 405.3 (M+H)⁺.

Compound 522—N2-isopropyl-N4-(2-(trifluoromethyl)pyridin-4-yl)-6-(4-(trifluoromethyl)pyrimidin-2-yl)-1,3,5-triazine-2,4-diamine

Using the standard procedure described above except replace t-BuONa by Cs₂CO₃ to give the title compound.

¹H NMR (DMSO-d₆): δ 10.63-10.81-10.95 (m, 1H), 9.36-9.39 (m, 1H), 8.73 (s, 1H), 8.08-8.56 (m, 3H), 7.84-7.85 (m, 1H), 4.14-4.19 (m, 1H), 1.20-1.24 (m, 6H). LC-MS: m/z 444.8 (M+H)⁺.

Compound 523—N2-neopentyl-N4-(2-(trifluoromethyl)pyridin-4-yl)-6-(4-(trifluoromethyl)pyrimidin-2-yl)-1,3,5-triazine-2,4-diamine

Using the standard procedure described above except replace t-BuONa by Cs₂CO₃ to yield the title compound.

Compound 524—N-(2-Methoxy-propyl)-6-(6-trifluoromethyl-pyridin-2-yl)-N′(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

1H NMR (METHANOL-d₄) δ 8.75-8.77 (m, 1H), 8.66-8.67 (m, 1H), 8.50-8.52 (m, 1H), 8.36-8.38 (m, 1H), 8.1.7-8.18 (m, 1H), 7.91-7.92 (m., 1H), 3.52-3.80 (m, 3H), 3.45 (s., 3H), 1.27-1.255 (d., J=6.0 Hz, 2H). LC-MS: m/z 474.2 (M+H)⁺.

Compound 526—N-(2-Methoxy-1-methyl-ethyl)-6-(6-trifluoromethyl-pyridin-2-yl)-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.69-8.67 (m, 1H), 8.61-8.29 (m, 2H), 8.22-7.87 (m, 3H), 4.62-4.37 (m, 1H), 3.57-3.46 (m., 2H), 3.31 (s, 3H), 1.33-1.30 (m, 3H). LC-MS: m/z 473.9 (M+H)⁺.

Compound 527—2-[4-(6-Trifluoromethyl-pyridin-2-yl)-6-(2-trifluoromethyl-pyridin-4-ylamino)-[1,3,5]triazin-2-ylamino]-propan-1-ol

¹H NMR (METHANOL-d₄) δ 8.73-8.48 (m, 3H), 8.23-7.92 (m, 3H), 4.62-4.29 (m, 1H), 3.70-3.67 (m, 2H), 1.335-1.319 (d, J=6.4 Hz, 3H). LC-MS: m/z 459.9 (M+H)⁺.

Compound 528—N-(3-Methoxy-propyl)-N′-(2-trifluoromethyl-pyridin-4-yl)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.67-8.69 (m, 1H), 8.50-8.61 (m, 2H), 8.19-8.23 (m, 1H), 7.93-7.99 (m, 2H), 3.61-3.69 (m, 2H), 3.54-3.56 (m, 2H), 3.30-3.37 (m, 1H), 1.93-1.99 (m, 2H). LC-MS: m/z 474.3 (M+H)⁺.

Compounds 529—N-(Tetrahydro-furan-3-yl)-N′-(2-trifluoromethyl-pyridin-4-yl)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.66-8.68 (m, 1H), 8.62-8.66 (m, 1H), 8.49-8.51 (m, 1H), 8.18-8.22 (m, 2H), 7.95-7.97 (m, 1H), 4.60-4.66 (m, 1H), 3.99-4.05 (m, 2H), 3.79-3.82 (m, 2H), 2.04-2.39 (m, 2H). LC-MS: m/z 472.3 (M+H)⁺.

Compounds 530—2,2-Dimethyl-3-[4-(6-trifluoromethyl-pyridin-2-yl)-6-(2-trifluoromethyl-pyridin-4-ylamino)-[1,3,5]triazin-2-ylamino]-propan-1-ol

¹H NMR (METHANOL-d₄) δ 8.74-8.70 (m, 1H), 8.67-8.52 (m, 2H), 8.29-7.90 (m, 3H), 3.51-3.41 (m, 2H), 3.34-3.33 (m., 1H), 3.23 (s, 1H), 1.03-0.92 (m, 6H). LC-MS: m/z 488.3 (M+H)⁺.

Compound 531—N-(2-Methyl-tetrahydro-furan-2-ylmethyl)-6-(6-trifluoromethyl-pyridin-2-yl)-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.71-8.24 (m, 3H), 8.23-7.84 (m, 3H), 3.97-3.90 (m, 2H), 3.78-3.58 (m, 2H), 2.03-1.97 (m., 2H), 1.78-1.74 (m, 1H), 1.31 (s, 3H). LC-MS: m/z 500.3 (M+H)⁺.

Compound 532—N-(2-Methyl-cyclopropyl)-6-(6-trifluoromethyl-pyridin-2-yl)-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.70-8.19 (m, 3H), 8.06-7.98 (m, 3H), 2.67-2.64 (m, 1H), 1.25-1.21 (m, 3H), 1.21-0.98 (m., 1H), 0.88-0.80 (m, 1H), 0.62-0.51 (m, 1H). LC-MS: m/z 456.2 (M+H)⁺.

Compound 533—N-(1-Methyl-cyclopropyl)-6-(6-trifluoromethyl-pyridin-2-yl)-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.85-8.65 (m, 2H), 8.48 (s, 1H), 8.20-8.16 (m, 1H), 7.96-7.82 (m, 2H), 1.55 (s, 3H), 0.93-0.90 (m, 2H), 0.85-0.82 (m, 2H). LC-MS: m/z 456.2 (M+H)⁺.

Compound 534—4-[4-Isopropylamino-6-(4-trifluoromethyl-pyrimidin-2-yl)-[1,3,5]triazin-2-ylamino]-pyridine-2-carbonitrile

Using the standard procedure described above except replacing t-BuONa by Cs₂CO₃ to yield the title compound.

¹H NMR (METHANOL-d₄) δ 9.33-9.31 (m, 1H), 8.65 (d, J=6.4 Hz, 1H), 8.47 (dd, J=7.2 Hz, 5.6 Hz, 1H), 8.07 (d, J=4.8 Hz, 1H), 7.96-7.95 (m, 1H), 4.30-4.27 (m, 1H), 1.32 (dd, J=12 Hz, 6.0 Hz, 6H). LC-MS: m/z 402.2 (M+H)⁺.

Compound 535—N-(6-Fluoro-pyridin-3-yl)-N′-isopropyl-6-(4-trifluoromethyl-pyrimidin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 9.30 (d, J=4.8 Hz, 1H), 8.62-8.53 (m, 2H), 8.05 (d, J=5.2 Hz, 1H), 7.08-7.07 (m, 1H), 4.25-4.22 (m, 1H), 1.28 (dd, J=10.8 Hz, 6.4 Hz, 6H). LC-MS: m/z 395.2 (M+H)⁺.

Compound 536—N-Isopropyl-N′-(5-trifluoromethyl-pyridin-3-yl)-6-(4-trifluoromethyl-pyrimidin-2-yl)-[1,3,5]triazine-2,4-diamine

Using the standard procedure described above except replacing t-BuONa by Cs₂CO₃ to yield the title compound.

¹H NMR (METHANOL-d₄) δ 9.31-9.33 (d, J=4.8 Hz, 1H), 8.98-9.11 (m, 1H), 8.52 (s, 1H), 8.06-8.07 (d, J=4 Hz, 1H), 4.26-4.63 (m, 2H), 1.28-1.34 (m, 6H). LC-MS: m/z 445.3 (M+H)⁺.

Compound 537—N-(2-Fluoro-pyridin-4-yl)-N′-isopropyl-6-(4-trifluoromethyl-pyrimidin-2-yl)-[1,3,5]triazine-2,4-diamine

Using the standard procedure described above except replacing t-BuONa by Cs₂CO₃ to yield the title compound.

¹H NMR (METHANOL-d₄) δ 9.41-9.42 (m, 1H), 8.14-8.20 (m, 2H), 7.59-7.82 (m, 1H), 4.35-4.38 (m, 2H), 1.32-1.41 (m, 6H). LC-MS: m/z 395.2 (M+H)⁺.

Compound 539—1-(4-(5,6-difluoropyridin-3-ylamino)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazin-2-ylamino)-2-methylpropan-2-ol

¹H NMR (METHANOL-d₄) δ 8.61-8.75 (m, 1H), 8.01-8.43 (m, 4H), 3.48 (s, 2H), 1.21 (s, 6H). LC-MS: m/z 442.2 (M+H)⁺.

Compound 540—1-[4-(6-Fluoro-5-methyl-pyridin-3-ylamino)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazin-2-ylamino]-2-methyl-propan-2-ol

¹H NMR (METHANOL-d₄) δ 8.94 (s, 1H), 8.78 (d, J=7.6 Hz, 1H), 8.35 (t, J=8.0 Hz, 1H), 8.14 (d, J=7.6 Hz, 1H), 7.65-7.86 (m, 3H), 4.41-4.48 (m, 1H), 3.20 (d, J=7.2 Hz, 2H), 1.37 (d, J=6.4 Hz, 6H), 0.98-1.06 (m, 1H), 0.53-0.57 (m, 2H), 0.17-0.21 (m, 2H). LC-MS: m/z 493.1 (M+H)⁺.

Compound 541—1-{[4-(3,5-Difluoro-phenylamino)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazin-2-ylamino]-methyl}-cyclopropanol

¹H NMR (DMSO-d₆) δ 8.628-8.543 (m, 1H), 8.336-8.281 (m, 1H), 8.107-8.088 (d, J=7.6 Hz, 2H), 7.788-7.767 (d, J=8.4 Hz, 1H), 1.30 (d, J=6.2 Hz, 1H), 6.842-6.797 (m, 1H), 5.503-5.428 (d, J=30 Hz, 1H), 3.629-3.567 (m, 2H), 0.666-0.584 (m, 2H). LC-MS: m/z 439.0 (M+H)⁺.

Compound 542—2-{3-[4-Isopropylamino-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazin-2-ylamino]-phenyl}-propan-2-ol

¹H NMR (METHANOL-d₄) δ 8.82-8.79 (m, 1H), 8.77-8.75 (m, 1H), 8.48-8.42 (m, 1H), 8.23-8.20 (m, 1H), 7.63-7.57 (m, 3H), 4.43-4.26 (m, 1H), 1.656-1.573 (d, J=33.2 Hz, 3H), 1.288-1.188 (d, J=40 Hz 3H). LC-MS: m/z 433.1 (M+H)⁺.

Compound 543—N-(1-Methyl-1H-pyrazol-4-yl)-6-(6-trifluoromethyl-pyridin-2-yl)-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.71-8.69 (m, 1H), 8.58-8.31 (m, 4H), 8.19-7.99 (m, 2H), 7.70-7.65 (m, 1H), 3.92 (s, 3H). LC-MS: m/z 481.37 (M+H)⁺.

Compound 544—N-(2-Methyl-2H-pyrazol-3-yl)-6-(6-trifluoromethyl-pyridin-2-yl)-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.75-8.32 (m, 4H), 8.25-8.00 (m, 2H), 7.53 (s, 1H), 6.44 (s, 1H), 3.83 (s, 3H). LC-MS: m/z 482.3 (M+H)⁺.

Compound 546—N2-(thiazol-5-yl)-6-(6-(trifluoromethyl)pyridin-2-yl)-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.7-8.9 (m, 1H), 8.65 (m, 1H), 8.35-8.55 (m, 1H), 8.05-8.3 (m, 2H), 8.0 (m, 1H), 7.75 (m, 1H). LC-MS: m/z 485.2 (M+H)⁺.

Compound 547—N-(Tetrahydro-furan-3-ylmethyl)-N′-(2-trifluoromethyl-pyridin-4-yl)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.78-8.76 (d, J=8 Hz 1H), 8.70-8.68 (d, J=5.6 Hz 1H), 8.53-8.52 (m, 1H), 8.43-8.37 (m, 1H), 8.22-8.20 (m, 1H), 7.92-7.91 (m, 1H), 3.95-3.93 (m, 1H), 3.92-3.88 (m, 1H), 3.86-3.85 (m, 1H), 3.78-3.77 (m, 3H), 2.73-2.71 (m, 1H), 2.18-2.15 (m, 1H), 1.77-1.75 (m, 1H). LC-MS: m/z 486.2 (M+H)⁺.

Compound 548—3-[4-(6-Trifluoromethyl-pyridin-2-yl)-6-(2-trifluoromethyl-pyridin-4-ylamino)-[1,3,5]triazin-2-ylamino]-butan-2-ol

¹H NMR (METHANOL-d₄) δ 8.60-8.40 (m, 3H), 8.13-7.80 (m, 3H), 4.32-4.05 (m, 1H), 3.88-3.79 (m, 1H), 1.23-1.12 (m, 6H). LC-MS: m/z 474.3 (M+H)⁺

Compound 549—N-(3-Methyl-oxetan-3-yl)-6-(6-trifluoromethyl-pyridin-2-yl)-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.71-8.54 (m, 1H), 8.49-8.52 (m, 2H), 8.25-8.21 (m, 1H), 8.14-7.89 (m, 2H), 4.65-4.64 (m, 2H), 1.85 (s, 3H). LC-MS: m/z 472.3 (M+H)⁺

Compound 550—N-(3-Methyl-oxetan-3-ylmethyl)-6-(6-trifluoromethyl-pyridin-2-yl)-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.72-8.52 (m, 3H), 8.26-7.99 (m, 3H), 4.74-4.67 (m, 2H), 4.45-4.42 (m, 2H), 3.87-3.82 (m, 2H), 1.43 (s, 3H). LC-MS: m/z 486.3 (M+H)⁺

Compound 551—N-(2-Difluoromethyl-pyridin-4-yl)-N′-isopropyl-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.71-8.68 (m, 1H), 8.53 (s, 1H), 8.44 (m, 1H), 8.23-7.78 (m, 3H), 6.84-6.56 (m., 1H), 4.31 (m, 1H), 1.36-1.34 (d, J=8 Hz, 6H). LC-MS: m/z 426.2 (M+H)⁺

Compound 552—2-Methyl-3-[4-(6-trifluoromethyl-pyridin-2-yl)-6-(2-trifluoromethyl-pyridin-4-ylamino)-[1,3,5]triazin-2-ylamino]-propan-1-ol

¹H NMR (METHANOL-d₄) δ 8.72-8.69 (m, 1H), 8.56-8.49 (m, 2H), 8.28-7.96 (m, 3H), 4.64-3.29 (m, 4H), 2.07-2.03 (m, 1H), 1.04-0.998 (m, 3H). LC-MS: m/z 474.2 (M+H)⁺

Compound 554—5-[4-(2,2-Dimethyl-propylamino)-6-(4-trifluoromethyl-pyrimidin-2-yl)-[1,3,5]triazin-2-ylamino]-nicotinonitrile

Using the standard procedure described above except replacing t-BuONa by Cs₂CO₃ yielded the title compound.

¹H NMR (MeOH-d₄) δ 9.42-9.46 (m, 1H), 8.73-9.25 (m, 3H), 8.21-8.26 (m, 1H), 3.49-3.51 (m, 2H), 1.00-1.07 (m, 9H). LC-MS: m/z 430.3 (M+H)⁺.

Compound 555—N-Isopropyl-N′-(1-propyl-1H-pyrazol-4-yl)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.67-8.65 (m, 1H), 8.30-7.98 (m, 3H), 7.70-7.60 (m, 1H), 4.50-4.20 (m, 1H), 4.13-4.10 (m., 2H), 1.92-1.89 (m, 2H), 1.35-1.29 (m, 6H), 0.96-0.93 (t, 3H). LC-MS: m/z 407.3 (M+H)⁺

Compound 556—N-(7-Oxa-bicyclo[2.2.1]hept-2-yl)-6-(6-trifluoromethyl-pyridin-2-yl)-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.71-8.48 (m, 3H), 8.24-7.93 (m, 3H), 4.87-4.86 (m, 1H), 4.70-4.605 (m, 1H), 4.43-4.18 (m, 1H), 2.35-1.99 (m, 2H), 1.78-1.23 (m, 4H). LC-MS: m/z 498.2 (M+H)⁺

Compound 557—N²-((tetrahydrofuran-3-yl)methyl)-N4-(2-(trifluoromethyl)pyridin-4-yl)-6-(4-(trifluoromethyl)pyrimidin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (MeOH-d₄) δ 9.36-9.42 (m, 1H), 8.50-8.69 (m, 2H), 8.20-8.21 (m, 1H), 7.93-8.13 (m, 1H), 3.64-3.98 (m, 6H), 2.71-2.77 (m, 1H), 2.12-2.27 (m, 1H), 1.73-1.81 (m, 1H). LC-MS: m/z 487.3 (M+H)⁺.

Compound 558—N²-(1-methoxypropan-2-yl)-N4-(2-(trifluoromethyl)pyridin-4-yl)-6-(4-(trifluoromethyl)pyrimidin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (MeOH-d₄) δ 9.31 (d, J=4.8 Hz, 1H), 8.30-8.66 (m, 2H), 7.87-8.21 (m, 2H), 4.36-4.67 (m, 1H), 3.49 (s, 3H), 1.28-1.34 (m, 3H). LC-MS: m/z 475.3 (M+H)⁺.

Compound 559—N-Isopropyl-N′-[2-(1-methoxy-cyclopropyl)-pyridin-4-yl]-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.69-8.71 (d, J=8 Hz, 1H), 8.18-8.31 (m, 3H), 7.93-7.98 (m, 1.3H), 7.58-7.59 (d, J=3.6 Hz, 0.7H), 4.34-4.62 (m, 1H), 3.39 (s, 3H), 1.33-1.34 (d, J=6 Hz, 1H), 1.23-1.28 (m, 4H). LC-MS: m/z 446.2 (M+H)⁺

Compound 560—1-[4-[6-(1,1-Difluoro-ethyl)-pyridin-2-yl]-6-(3,5-difluoro-phenylamino)-[1,3,5]triazin-2-ylamino]-2-methyl-propan-2-ol

¹H NMR (METHANOL-d₄) δ 8.65-8.88 (d, J=7.6 Hz, 1H) 8.30-8.35 (d, J=20 Hz, 1H), 8.10-8.12 (d, J=8 Hz, 1H), 7.50-7.58 (m, 2H), 6.86-6.90 (m, 1H), 3.58-3.64 (d, J=24 Hz, 1H), 2.13-2.25 (m, 3H), 1.35-1.37 (d, J=6.8 Hz, 6H). LC-MS: m/z 437.1 (M+H)⁺

Compound 561—N-(3-Chloro-5-methanesulfonyl-phenyl)-N′-isopropyl-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

1H NMR (METHANOL-d₄) δ 8.70-8.67 (m, 2H), 8.24-8.17 (m, 1H), 8.04 (m, 1H), 7.97-7.95 (m, 1H), 7.58-7.55 (s., 1H), 4.34-4.28 (m, 1H), 3.19 (s, 3H), 1.33-1.31 (d, J=6.4 Hz, 6H). LC-MS: m/z 487.2 (M+H)⁺

Compound 562—2-Methyl-2-[4-(6-trifluoromethyl-pyridin-4-ylamino)-[1,3,5]triazin-2-ylamino]-propan-1-ol

¹H NMR (METHANOL-d₄) δ 8.70-8.68 (d, J=8 Hz 1H), 8.64-7.88 (m, 5H), 8.53-8.52 (m, 1H), 3.83 (s, 3H), 1.523-1.496 (d, J=10.8 Hz 6H). LC-MS: m/z 474.3 (M+H)⁺.

Compound 563—N-(2-Cyclopropyl-pyridin-4-yl)-N′-isopropyl-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.78-8.76 (m, 1H), 8.48-8.35 (m, 2H), 8.17-8.06 (m, 3H), 4.39-4.36 (m, 1H), 1.49-1.38 (m, 8H), 1.21-1.19 (m, 2H). LC-MS: m/z 416.1 (M+H)⁺.

Compound 564—N-tert-Butyl-N′-(2-cyclopropyl-pyridin-4-yl)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.68-8.66 (m, 1H), 8.21-8.19 (m, 2H), 7.98-7.64 (m, 3H), 2.15-2.11 (m, 1H), 1.59 (s, 9H), 1.11-1.01 (m, 4H). LC-MS: m/z 430.1 (M+H)⁺.

Compound 565—N-(2-Cyclopropyl-pyridin-4-yl)-N′-(1-methyl-cyclopropyl)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ8.69-8.67 (m, 1H), 8.25-8.19 (m, 2H), 8.01-7.86 (m, 3H), 2.15-2.11 (m, 1H), 1.57-1.56 (m, 1H), 1.17-1.12 (m, 2H), 1.08-1.02 (m, 2H), 0.94-0.90 (m, 2H), 0.87-0.85 (m, 2H). LC-MS: m/z 428.1 (M+H)⁺.

Compound 566—{1-[4-(6-Trifluoromethyl-pyridin-2-yl)-6-(2-trifluoromethyl-pyridin-4-ylamino)-[1,3,5]triazin-2-ylamino]-cyclopropyl}-methanol

¹H NMR (METHANOL-d₄) δ 8.74-8.69 (m, 2H), 8.52-8.48 (m, 1H), 8.25-7.58 (m, 3H), 3.79 (s, 2H), 1.02-0.95 (m, 4H). LC-MS: m/z 494.2 (M+H)⁺.

Compound 567—N-tert-Butyl-N′-[2-(1,1-difluoro-ethyl)-pyridin-4-yl]-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.72-8.44 (m, 3H), 8.25-7.77 (m, 3H), 2.05-1.95 (m, 3H), 1.58 (s, 9H). LC-MS: m/z 454.1 (M+H)⁺.

Compound 568—2-[4-(6-Trifluoromethyl-pyridin-2-yl)-6-(2-trifluoromethyl-pyridin-4-ylamino)-[1,3,5]triazin-2-ylamino]-cyclopropanol

¹H NMR (METHANOL-d₄) δ 8.31-8.90 (m, 3H), 8.15-8.30 (m, 2H), 7.93-8.05 (m, 1H), 3.43-3.55 (m, 1H), 2.90-3.10 (m, 1H), 1.10-1.25 (m, 1H), 0.89-0.99 (m, 1H). LC-MS: m/z 458.2 (M+H)⁺.

Compound 569—2-[4-(6-Trifluoromethyl-pyridin-2-yl)-6-(2-trifluoromethyl-pyridin-4-ylamino)-[1,3,5]triazin-2-ylamino]-cyclopropanol

¹H NMR (METHANOL-d₄) δ 8.35-8.90 (m, 3H), 8.13-8.34 (m, 2H), 7.97-8.05 (m, 1H), 3.47-3.55 (m, 1H), 2.72-3.01 (m, 1H), 1.08-1.25 (m, 1H), 0.90-0.99 (m, 1H). LC-MS: m/z 458.2 (M+H)⁺.

Compound 570—N2-(3-fluoro-5-(methylsulfonyl)phenyl)-N4-isopropyl-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.70-8.62 (m, 2H), 8.21-7.84 (m, 3H), 7.35-7.33 (r, 1H), 4.34-4.31 (m, 1H), 3.16 (s, 3H), 1.31 (dd, 6H). LC-MS: m/z 470.0 (M+H)⁺.

Compound 571—N2-isobutyl-N4-(3-(methylsulfonyl)phenyl)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄): δ 8.7-8.9 (m, 2H), 8.3-8.5 (m, 1H), 8.0-8.2 (m, 1H), 7.6-7.86 (m, 3H), 3.5 (m, 2H), 3.15 (S, 3H), 1.0-1.1 (d, J=16 Hz, 6H). LC-MS: m/z 467.1 (M+H)⁺.

Compound 572—N2-(2-chloropyridin-4-yl)-N4-isopropyl-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₄) δ 10.2-10.5 (m, 1.0H), 8.85-8.65 (m, 1H), 8.6 (m, 1H), 8.25-8.45 (m, 3H), 8.1 (m, 1H), 7.2 (m, 1H), 4.1-4.4 (m, 1H), 1.2 (d, J=6.4 Hz, 6H). LC-MS: m/z 410.1 (M+H)⁺.

Compound 573—1-[4-[2-(1,1-Difluoro-ethyl)-pyridin-4-ylamino]-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazin-2-ylamino]-2-methyl-propan-2-ol

¹H NMR (METHANOL-d₄) δ 8.72-8.42 (m, 3H), 8.24-7.74 (m, 3H), 3.64-3.60 (m, 2H), 2.05-1.94 (m, 3H), 2.34-1.91 (m, 4H), 1.30-1.29 (m, 6H). LC-MS: m/z 492.1 (M+Na)⁺.

Compound 574—1-{4-[4-Isopropylamino-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazin-2-ylamino]-pyridin-2-yl}-propan-1-one

¹H NMR (METHANOL-d₄) δ 8.69 (s, 0.7H), 8.63-8.64 (d, J=8 Hz, 1H), 8.38-8.40 (dd, J₁=5.2 Hz, J₂=9.2 Hz, 1H), 8.13-8.18 (q, J=8 Hz, 1H, 7.78-8.03 (m, 2H), 4.22-4.36 (m, 1H), 3.12-3.16 (m, 2H), 1.25-1.29 (m, 6H), 1.11-1.14 (m, 3H). LC-MS: m/z 375.1 (M+H)⁺.

Compound 576—6-[6-(1,1-Difluoro-ethyl)-pyridin-2-yl]-N-[2-(1,1-difluoro-ethyl)-pyridin-4-yl]-N′-isopropyl-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.78-8.80 (d, J=6 Hz, 1H), 8.69-8.71 (d, J=8.4 Hz, 2H), 8.26-8.53 (m, 1H), 8.05-8.19 (m, 2H), 4.39-4.60 (m, 1H), 2.10-2.24 (m, 6H), 1.40-1.46 (m, 6H). LC-MS: m/z 436.3 (M+H)⁺.

Compound 577—4-[4-(6-Trifluoromethyl-pyridin-2-yl)-6-(2-trifluoromethyl-pyridin-4-ylamino)-[1,3,5]triazin-2-ylamino]-piperidine-1-carboxylic acid methyl ester

¹H NMR (METHANOL-d₄) δ 8.30-8.78 (m, 3H), 7.82-8.29 (m, 3H), 4.10-4.39 (m, 3H), 3.73 (s, 3H), 2.99-3.18 (m, 2H), 2.02-2.16 (m, 2H), 1.53-1.65 (m, 2H). LC-MS: m/z 543.3 (M+H)⁺.

Compound 578—1-{4-[4-(6-Trifluoromethyl-pyridin-2-yl)-6-(2-trifluoromethyl-pyridin-4-ylamino)-[1,3,5]triazin-2-ylamino]-piperidin-1-yl}-ethanone

¹H NMR (METHANOL-d₄) δ 8.62-8.87 (m, 2H), 8.30-8.60 (m, 2H), 7.88-8.29 (m, 2H), 4.31-4.60 (m, 2H), 3.95-4.10 (m, 1H), 3.37-3.43 (m, 1H), 2.90-3.19 (m, 1H), 2.10-2.30 (m, 5H), 1.58-1.83 (m, 2H). LC-MS: m/z 527.2 (M+H)⁺.

Compound 580—N-(1-Methanesulfonyl-piperidin-4-yl)-6-(6-trifluoromethyl-pyridin-2-yl)-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.67-8.93 (m, 2H), 8.38-8.59 (m, 2H), 7.92-8.31 (m, 2H), 4.19-4.52 (m, 1H), 3.70-3.88 (m, 2H), 3.08 (t, J=10.4 Hz, 6H), 2.93 (s, 3H), 2.18-2.32 (m, 2H), 1.77-1.98 (m, 2H). LC-MS: m/z 563.3 (M+H)⁺.

Compound 581—N-Isopropyl-N′-[2-(1-methyl-cyclopropyl)-pyridin-4-yl]-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ 8.73-8.69 (d, J=17.6 Hz 1H), 8.26-8.16 (m, 3H), 8.06-7.97 (m, 1H), 7.63-7.62 (m, 1H), 4.38-4.34 (m, 1H), 1.54-1.52 (s, 3H), 1.35-1.26 (m, 6H), 1.18-1.16 (m, 2H), 0.90-0.97 (m, 2H). LC-MS: m/z 430.1 (M+H)⁺.

Compound 582—6-[6-(1,1-Difluoro-ethyl)-pyridin-2-yl]-N-isopropyl-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.63-8.50 (m, 3H), 8.26-8.09 (m, 1H), 7.97-7.87 (m, 2H), 4.50-4.29 (m, 1H), 2.14 (t, J=13.2 Hz, 3H), 1.35 (d, J=8.8 Hz, 6H). LC-MS: m/z 440.1 (M+H)⁺.

Compound 583—6-(6-(1,1-difluoroethyl)pyridin-2-yl)-N2-(3,5-difluorophenyl)-N4-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.53 (t, 1H), 8.09 (t, 1H), 7.86-7.84 (m, 1H), 7.58-7.56 (m, 1H), 6.60-6.56 (m, 1H), 4.28-4.25 (m, 1H), 2.17-2.04 (m, 3H), 1.33-1.29 (m, 6H). LC-MS: m/z 407.2 (M+H)⁺.

Compound 584—N2-(cyclopropylmethyl)-6-(6-(1,1-difluoroethyl)pyridin-2-yl)-N4-(3,5-difluorophenyl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.51 (t, 1H), 8.01 (t, 1H), 7.84 (t, 1H), 7.56-7.54 (m, 1H), 6.56 (t, 1H), 3.42-3.36 (1H), 2.10 (t, 3H), 1.18-1.16 (m, 1H), 0.57-0.51 (m, 2H), 0.33-0.29 (m, 2H). LC-MS: m/z 419.2 (M+H)⁺.

Compound 585—N2-(tert-butyl)-6-(6-(1,1-difluoroethyl)pyridin-2-yl)-N4-(3,5-difluorophenyl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.85-8.49 (m, 1H), 8.09-8.06 (m, 1H), 1H), 7.83 (d, 1H), 7.52-7.48 (m, 2H), 6.61-6.56 (m, 1H), 2.10 (t, 3H), 1.53 (s, 9H). LC-MS: m/z 421.1 (M+H)⁺.

Compound 586—1-(4-((4-((cyclopropylmethyl)amino)-6-(6-(1,1-difluoroethyl)pyridin-2-yl)-1,3,5-triazin-2-yl)amino)pyridin-2-yl)cyclopropanecarbonitrile

¹H NMR (METHANOL-d₄) δ 8.62 (d, 1H), 8.16-7.56 (m, 4H), 4.47-4.23 (m, 1H), 3.62-3.61 (m, 1H), 1.34-1.04 (m, 10H). LC-MS: m/z 405.2 (M+H)⁺.

Compound 587—N2-(tetrahydro-2H-pyran-4-yl)-6-(6-(trifluoromethyl)pyridin-2-yl)-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

1H NMR (METHANOL-d₄) δ 8.7-8.25 (m, 3H), 8.25-7.7 (m, 3H), 4.4-4.1 (m, 1H), 4.0 (m, 2H), 3.65-3.5 (m, 2H), 2.1-2.0 (m, 2H), 1.8-1.6 (m, 2H). LC-MS: m/z 486.3 (M+H)⁺.

Compound 588—2-((4-(6-(trifluoromethyl)pyridin-2-yl)-6-((2-(trifluoromethyl)pyridin-4-yl)amino)-1,3,5-triazin-2-yl)amino)cyclopentanol

1H NMR (METHANOL-d₄) δ 8.85-8.6 (m, 2.0H), 8.5-8.0 (m, 4H), 4.4-4.15 (m, 2H), 2.4-1.6 (m, 6H). LC-MS: m/z 486.0 (M+H)⁺.

Preparation of 3-[4-(6-Chloro-pyridin-2-yl)-6-isopropylamino-[1,3,5]triazin-2-ylamino]-N-cyclopropyl-benzamide Step 1: Preparation of methyl 3-(4-(6-chloropyridin-2-yl)-6-(isopropylamino)-1,3,5-triazin-2-yl-amino) benzoate

To a solution of 4-chloro-6-(6-chloropyridin-2-yl)-N-isopropyl-1,3,5-triazin-2-amine (134 mg, 0.47 mmol) in toluene (4 mL) was added methyl 3-aminobenzoate (85.6 mg, 0.57 mmol), Cs₂CO₃ (306.9 mg, 0.94 mmol), BINAP (29.33 mg, 0.047 mmol) and Pd₂(dba)₃ (43.13 mg, 0.047 mmol). The mixture was purged with nitrogen three times and stirred at 110° C. for 40 min under M.W. irradiation. TLC (PE:EA=1:1) showed the reaction was complete. The mixture was partitioned between H₂O (150 mL) and EA (50 mL). The organic layer was separated, dried over Na₂SO₄, filtered and concentrated in vacuo. The residue was purified by combi flash to give methyl 3-(4-(6-chloropyridin-2-yl)-6-(isopropylamino)-1,3,5-triazin-2-yl amino)benzoate as a yellow solid.

Step 2: Preparation of 3-(4-(6-chloropyridin-2-yl)-6-(isopropylamino)-1,3,5-triazin-2-ylamino)benzoic acid

To a solution of methyl 3-(4-(6-chloropyridin-2-yl)-6-(isopropylamino)-1,3,5-triazin-2-y-1 amino)benzoate (112 mg, 0.28 mmol) in MeOH (2 mL) was added NaOH (0.28 mL, 3 N). The mixture was stirred at room temperature for 3 h. TLC (PE:EA=1:1) showed the reaction was complete. The mixture was concentrated in vacuo. The residue was acidified with 1 N HCl to pH=6 and extracted with CH₂Cl₂ (50 mL*3). The combined extracts were concentrated to give 3-(4-(6-chloropyridin-2-yl)-6-(isopropylamino)-1,3,5-triazin-2-ylamino) benzoic acid as a yellow solid.

Step 3: 3-[4-(6-Chloro-pyridin-2-yl)-6-isopropylaminino-[1,3,5]triazin-2-ylamino]-N-cyclopropyl-benzamide

To a solution of 3-(4-(6-chloropyridin-2-yl)-6-(isopropylamino)-1,3,5-triazin-2-ylamino) benzoic acid (104 mg, 0.27 mmol) in DMF (4 mL) was added HATU (205 mg, 0.54 mmol), NMM (81.93 mg, 0.81 mmol). The mixture was purged with nitrogen and stirred at room temperature overnight. LCMS showed the reaction was complete. The mixture was poured into brine (150 mL) and extracted with EA (50 mL*2). The combined extracts were dried over Na₂SO₄, filtered and concentrated in vacuo. The residue was purified by a standard method to give the title compound.

¹H NMR (METHANOL-d₄) δ 8.57-8.40 (m, 2H), 8.01 (t, J=7.9 Hz, 1H), 7.82 (d, J=8.0 Hz, 1H), 7.64 (d, J=8.0 Hz, 1H), 7.48-7.40 (m, 2H), 4.33-4.30 (m, 1H), 2.89-2.87 (m, 1H), 1.32 (d, J=6.4 Hz, 6H), 0.87-0.82 (m, 2H), 0.68-0.64 (m, 2H). LC-MS: m/z 424.2 (M+H)⁺.

Example 8. Preparation of Compounds of Formula I Wherein Ring A is Substituted Aryl or Heteroaryl

The compounds of this Example are prepared by the general method in Scheme 8, set forth below.

Preparation of 2-Methyl-1-[4-(2-trifluoromethyl-pyridin-4-ylamino)-6-(4-trifluoromethyl-pyrimidin-2-yl)-[1,3,5]triazin-2-ylamino]-propan-2-ol Example 8, Step 1: Preparation of 4-chloro-6-(4-trifluoromethyl-pyrimidin-2-yl)-[1,3,5]triazin-2-yl]-(2-trifluoromethyl-pyridin-4-yl)-amine

To a solution of 2,4-dichloro-6-(4-(trifluoromethyl)pyrimidin-2-yl)-1,3,5-triazine (1) (981 mg, 3.31 mmol) in THF (80 mL) was added 2-(trifluoromethyl)pyridin-4-amine (4) (590 mg, 3.64 mmol) and NaHCO₃ (556 mg, 6.6 mmol). The mixture was stirred at refluxing for 18 hours. The mixture was concentrated and poured to water, extracted with ethyl acetate, dried over sodium sulphate, filtered and concentrated to give a residue, which was purified by SiO₂ chromatography to give 4-chloro-6-(4-trifluoromethyl-pyrimidin-2-yl)-[1,3,5]triazin-2-yl]-(2-trifluoromethyl-pyridin-4-yl)-amine (0.45 g, 32%) as a yellow solid.

LCMS: m/z 422.2 (M+H)⁺

The following intermediate was similarly prepared according to Example 8, Step 1:

4-chloro-6-(6-(trifluoromethyl)pyridin-2-yl)-N-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazin-2-amine

LCMS: m/z 421.2 (M+H)⁺

4-chloro-6-(6-(1,1-difluoroethyl)pyridin-2-yl)-N-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazin-2-amine

LCMS: m/z 416.3 (M+H)⁺

Example 8, Step 2: 2-Methyl-1-[4-(2-trifluoromethyl-pyridin-4-ylamino)-6-(4-trifluoromethyl-pyrimidin-2-yl)-[1,3,5]triazin-2-ylamino]-propan-2-ol

To a solution of [4-chloro-6-(4-trifluoromethyl-pyrimidin-2-yl)-[1,3,5]triazin-2-yl]-(2-trifluoromethyl-pyridin-4-yl)-amine (90 mg, 0.21 mmol) in anhydrous THF (2 mL) was added 1-amino-2-methyl-propan-2-ol (28.5 mg, 0.32 mmol). The mixture was stirred at ambient temperature for 4 hour. After concentration, the residue was purified by a standard method to give 2-methyl-1-[4-(2-trifluoromethyl-pyridin-4-ylamino)-6-(4-trifluoromethyl-pyrimidin-2-yl)-[1,3,5]triazin-2-ylamino]-propan-2-ol.

Compound 589—2-methyl-1-((4-((2-(trifluoromethyl)pyridin-4-yl)amino)-6-(4-(trifluoromethyl)pyrimidin-2-yl)-1,3,5-triazin-2-yl)amino)propan-2-ol

¹H NMR (MeOH-d₄) δ 9.41-9.48 (m, 1H), 8.49-8.72 (m, 2H), 7.92-8.27 (m, 2H), 3.65-3.69 (m, 2H), 1.37 (s, 6H). LC-MS: m/z 475.3 (M+H)⁺.

The following compounds were prepared in a similar manner to the synthetic sequence in Scheme 8, Steps 1 and 2, using appropriate reagents and synthetic intermediates:

Compound 590—2-((4-((2-(trifluoromethyl)pyridin-4-yl)amino)-6-(4-(trifluoromethyl)pyrimidin-2-yl)-1,3,5-triazin-2-yl)amino)propan-1-ol

¹H NMR (MeOH-d₄) δ 9.35-9.41 (m, 1H), 8.39-8.64 (m, 2H), 8.18-8.21 (m, 1H), 7.93-8.13 (m, 1H), 4.34-4.46 (m, 1H), 3.67-3.80 (m, 2H), 1.31-1.39 (m, 3H). LC-MS: m/z 461.3 (M+H)⁺.

Compound 591—2-Methyl-3-[4-(6-trifluoromethyl-pyridin-2-yl)-6-(2-trifluoromethyl-pyridin-4-ylamino)-[1,3,5]triazin-2-ylamino]-butan-2-ol

¹H NMR (METHANOL-d₄) δ 8.71-8.66 (m, 2H), 8.25-8.61 (m, 1H), 8.24-7.84 (m, 3H), 4.24-4.22 (m, 1H), 1.31-1.28 (s, 3H). LC-MS: m/z 488.0 (M+H)⁺.

Compound 592—N-tert-Butyl-N′-(3-fluoro-5-methanesulfonyl-phenyl)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ 8.75-8.73 (m, 1H), 8.24-8.21 (m, 2H), 7.99-7.92 (m, 2H), 7.39-7.37 (m, 1H), 3.20 (s, 3H), 1.57 (s, 9H). LC-MS: m/z 485.1 (M+H)⁺.

Compound 593—N-Cyclopropylmethyl-N′-(3-fluoro-5-methanesulfonyl-phenyl)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.71-8.60 (m, 2H), 8.22-7.95 (m, 3H), 7.34-7.33 (m, 1H), 3.44-3.39 (m, 2H), 3.20 (s, 3H), 1.23 (m, 1H), 0.36-0.10 (m, 2H). LC-MS: m/z 483.1 (M+H)⁺.

Compound 594—1-((4-(6-(1,1-difluoroethyl)pyridin-2-yl)-6-((2-(trifluoromethyl)pyridin-4-yl)amino)-1,3,5-triazin-2-yl)amino)-2-methylpropan-2-ol

¹H NMR (METHANOL-d₄) δ 8.61-8.21 (m, 3H), 8.15-7.85 (m, 3H), 3.59 (d, 2H), 2.11 (t, 3H), 1.27 (d, 6H). LC-MS: m/z 470.2 (M+H)⁺.

Compound 595—N2-(cyclopropylmethyl)-6-(6-(1,1-difluoroethyl)pyridin-2-yl)-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.66-8.28 (m, 3H), 8.22-7.85 (m, 3H), 3.42 (dd, 2H), 2.11 (t, 3H), 1.21 (br, 1H), 0.59-0.55 (m, 2H), 0.36-0.31 (m, 2H). LC-MS: m/z 452.2 (M+H)⁺.

Compound 596—N2-(tert-butyl)-6-(6-(1,1-difluoroethyl)pyridin-2-yl)-N4-(2-(1,1-difluoroethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.55-8.41 (m, 3H), 8.11-8.07 (m, 1H), 7.86-7.76 (m, 2H), 2.14-1.93 (m, 6H), 1.56 (s, 9H). LC-MS: m/z 450.2 (M+H)⁺.

Compound 597—N2-(cyclopropylmethyl)-6-(6-(trifluoromethyl)pyridin-2-yl)-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.75-8.73 (d, 2H), 8.55-8.38 (m, 1H), 8.28-8.22 (m, 1H), 8.02 (d, 1H), 7.88 (br, 1H), 3.53-3.41 (dd, 2H), 1.21 (br, 1H), 0.64-0.58 (m, 2H), 0.46-0.33 (m, 2H). LC-MS: m/z 456.2 (M+H)⁺.

Compound 598—N2-(cyclopropylmethyl)-N4-(3,5-difluorophenyl)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.68-865 (m, 1H), 8.22-8.18 (m, 1H), 7.97-7.95 (m, 1H), 7.56-7.52 (m, 2H), 6.61-6.56 (m, 1H), 3.44-3.38 (m, 2H), 1.20-1.18 (m, 1H), 0.57-0.55 (m, 2H), 0.34-0.33 (m, 2H). LC-MS: m/z 423.2 (M+H)⁺.

Compound 599—N2-(3-chloro-5-(methylsulfonyl)phenyl)-N4-(cyclopropylmethyl)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.73-8.71 (m, 2H), 8.24-8.20 (t, J=8 Hz, 1H), 8.10 (s, 1H), 7.99-7.97 (d, J=8 Hz, 1H), 7.61 (s, 1H), 3.49-3.43 (m, 2H), 3.19 (s, 1H), 1.23-1.19 (m, 1H), 0.58-0.55 (m, 2H), 0.39-0.35 (m, 2H). LC-MS: m/z 499.2 (M+H)⁺.

Compound 600—N2-(tert-butyl)-N4-(3-chloro-5-(methylsulfonyl)phenyl)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.68-8.66 (m, 2H), 8.43-8.28 (m, 1H), 8.18-8.14 (m, 2H), 7.94-7.92 (d, J=7.6 Hz, 1H), 7.58-7.53 (m, 1H), 3.16 (s, 3H), 1.53 (s, 9H). LC-MS: m/z 501.2 (M+H)⁺.

Compound 601—N2-(tert-butyl)-N4-(3,5-difluorophenyl)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.64-8.62 (m, 1H), 8.20-8.16 (m, 1H), 7.95-7.93 (m, 1H), 7.50-7.48 (m, 2H), 6.60-6.53 (m, 1H), 1.53 (s, 9H). LC-MS: m/z 425.5 (M+H)⁺.

Compound 602—N2-(tert-butyl)-6-(6-(trifluoromethyl)pyridin-2-yl)-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.67-8.64 (m, 1H), 8.49-8.48 (m, 1H), 8.21-8.17 (m., 2H), 7.96-7.94 (m, 1H), 7.81 (br.s., 1H), 1.55 (s, 9H). LC-MS: m/z 458.2 (M+H)⁺.

Compound 603—N2-(3,5-difluorophenyl)-N4-isopropyl-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.35-8.16 (d, 1H), 7.79-7.65 (m, 1H), 7.58-7.56 (s, 2H), 7.30-7.20 (d, 1H), 6.10-6.0 (s, 1H), 4.50-4.27 (m, 1H), 1.33-1.31 (d, 6H). LC-MS: m/z 411.1 (M+H)⁺.

Compound 604—N2-(cyclopropylmethyl)-N4-(2-(1,1-difluoroethyl)pyridin-4-yl)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.68 (d, 1H), 8.50-8.18 (m, 3H), 8.02-7.73 (m, 2H), 3.42 (dd, 2H), 2.01 (t, 2H), 1.24-1.16 (m, 1H), 0.58-0.55 (m, 2H), 0.35-0.33 (m, 2H). LC-MS: m/z 452.1 (M+H)⁺.

Compound 605—1-((4-(6-(1,1-difluoroethyl)pyridin-2-yl)-6-((2-(1,1-difluoroethyl)pyridin-4-yl)amino)-1,3,5-triazin-2-yl)amino)-2-methylpropan-2-ol

¹H NMR (METHANOL-d₄) δ 8.58-8.13 (m 3H), 8.11-7.76 (m, 3H), 3.60 (d, 2H), 2.17-1.93 (m, 6H), 1.28 (d, 6H). LC-MS: m/z 466.1 (M+H)⁺.

Compound 606—1-(4-((4-(tert-butylamino)-6-(6-(1,1-difluoroethyl)pyridin-2-yl)-1,3,5-triazin-2-yl)amino)pyridin-2-yl)cyclopropanecarbonitrile

¹H NMR (METHANOL-d₄) δ 8.71-8.5 (m, 1H), 8.4-8.2 (m, 1H), 8.1 (m, 1H), 7.9 (m, H), 7.6 (m, 1H), 2.15-2.06 (t, J=18 Hz, 3H), 1.78-1.74 (d, J=16 Hz, 4H), 1.55 (s, 9H). LC-MS: m/z 450.2 (M+H)⁺.

Compound 607—N2-(cyclopropylmethyl)-N4-(3-(methylsulfonyl)phenyl)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO, T=273+80K) δ 10.03 (s, 1H), 8.78 (s, 1H), 8.59-8.57 (m, 1H), 8.28-8.24 (m, 1H), 8.04-7.97 (m, 2H), 7.59-7.84 (m, 3H), 3.35 (br.s., 2H), 3.17 (S, 3H), 1.15-1.14 (m, 1H), 0.48-0.46 (m, 2H), 0.32-0.31 (m, 2H). LC-MS: m/z 465.2 (M+H)⁺.

Compound 608—1-(4-((4-(tert-butylamino)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazin-2-yl)amino)pyridin-2-yl)cyclopropanecarbonitrile

¹H NMR (METHANOL-d₄) δ 8.87-8.85 (m, 1H), 8.7-8.11 (m, 2H), 7.96-7.87 (m, 1H), 7.585-7.583 (m, 1H) 1.8-1.70 (d, 4H), 1.59-1.54 (m, 6H). LC-MS: m/z 455.1 (M+H).

Compound 609—N2-(3-chloro-5-(methylsulfonyl)phenyl)-N4-(cyclopropylmethyl)-6-(6-(1,1-difluoroethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.65 (s, 1H), 8.54-8.51 (m, 1H), 8.06-8.04 (t, J=7.8 Hz, 2H), 7.84-7.82 (d, J=7.6 Hz, 1H), 7.57-7.56 (m, 1H), 3.39-3.37 (m, 2H), 3.14 (s, 3H), 2.13-20.3 (t, J=19.2 Hz, 1H), 1.18-1.13 (m, 1H), 0.54-0.50 (m, 2H), 0.32-0.31 (m, 2H). LC-MS: m/z 501.2 (M+H)⁺.

Compound 610—N2-(cyclopropylmethyl)-6-(6-(1,1-difluoroethyl)pyridin-2-yl)-N4-(2-(1,1-difluoroethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.56-8.13 (m, 3H), 8.11-7.77 (m, 3H), 3.45-3.40 (m, 2H), 2.15-1.94 (m, 6H), 1.22-1.18 (m, 1H), 0.58-1.19 (m, 1H), 0.59-0.54 (m, 2H), 0.36-0.31 (m, 2H). LC-MS: m/z 448.2 (M+H)⁺.

Compound 611—N2-(cyclopropylmethyl)-6-(6-(1,1-difluoroethyl)pyridin-2-yl)-N4-(3-(methylsulfonyl)phenyl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.96 (s, 1H), 8.58-8.55 (m, 1H), 8.10-7.78 (m, 3H), 7.62-7.55 (m, 2H), 3.44-3.41 (m, 2H), 3.14 (d, 3H), 2.11 (t, 3H), 1.20-1.17 (m, 1H), 0.57-0.52 (m, 2H), 0.36-0.33 (m, 2H). LC-MS: m/z 461.2 (M+H)⁺.

Compound 612—N2-(cyclopropylmethyl)-6-(6-(1,1-difluoroethyl)pyridin-2-yl)-N4-(3-fluoro-5-(methylsulfonyl)phenyl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.58-8.13 (m, 2H), 8.12-7.86 (m, 2H), 7.36-7.32 (m, 1H), 3.46-3.41 (m, 2H), 3.19 (d, 3H), 2.13 (t, 3H), 1.24-1.18 (m, 1H), 0.59-0.56 (m, 2H), 0.37-0.35 (m, 2H). LC-MS: m/z 479.2 (M+H)⁺.

Compound 613—6-(6-(1,1-difluoroethyl)pyridin-2-yl)-N2-(3-fluoro-5-(methylsulfonyl)phenyl)-N4-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.57 (d, 2H), 8.13-7.86 (m, 3H), 7.37-7.32 (m, 1H), 4.37-4.34 (m, 1H), 3.19 (d, 3H), 2.18-2.06 (m, 3H), 1.35-1.32 (m, 6H). LC-MS: m/z 467.2 (M+H)⁺.

Compound 614—N2-(3-chloro-5-(methylsulfonyl)phenyl)-6-(6-(1,1-difluoroethyl)pyridin-2-yl)-N4-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.73-8.33 (m, 2H), 8.11 (t, 2H), 7.87 (d, 1H), 7.61 (s, 1H), 4.48-4.28 (m, 1H), 3.20 (d, 3H), 2.13 (t, 3H), 1.34 (t, 6H). LC-MS: m/z 488.2 (M+H)⁺.

Compound 615—N2-(tert-butyl)-N4-(3-chloro-5-(methylsulfonyl)phenyl)-6-(6-(1,1-difluoroethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.57-8.56 (m, 1H), 8.43-8.25 (m, 2H), 8.12-8.06 (m, 1H), 7.85 (d, 1H), 7.61 (s, 1H), 3.17 (s, 3H), 2.11 (t, 3H), 1.56 (s, 9H). LC-MS: m/z 497.2 (M+H)⁺.

Compound 616—N2-(tert-butyl)-6-(6-(1,1-difluoroethyl)pyridin-2-yl)-N4-(3-fluoro-S-(methylsulfonyl)phenyl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.59-8.42, 8.13-8.05 (m, 2H), 7.87 (d, 1H), 7.39-7.34 (m, 1H), 3.19 (s, 3H), 2.18-2.06 (m, 3H), 1.57 (s, 9H). LC-MS: m/z 481.2 (M+H)⁺.

Compound 617—1-(4-((4-((cyclopropylmethyl)amino)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazin-2-yl)amino)pyridin-2-yl)cyclopropanecarbonitrile

¹H NMR (METHANOL-d₄) δ 8.87-8.85 (m, 1H), 8.7-8.11 (m, 2H), 7.96-7.87 (m, 1H), 7.585-7.583 (m, 1H), 3.35 (br.s., 2H), 1.15-1.14 (m, 1H), 0.48-0.46 (m, 2H), 0.32-0.31 (m, 2H). LC-MS: m/z 453.1 (M+H)⁺.

Compound 618—(4-((4-((cyclopropylmethyl)amino)-6-(6-(1,1-difluoroethyl)pyridin-2-yl)-1,3,5-triazin-2-yl)amino)pyridin-2-yl)-2-methylpropanenitrile

¹H NMR (METHANOL-d₄) δ 8.60-8.56 (m, 1H), 8.44-8.37 (m, 2H), 8.11-8.03 (m, 1H), 7.87-7.85 (m, 1H), 7.62-7.60 (m, 1H), 3.45-3.43 (d, 2H), 2.15-2.06 (t, 3H), 1.78 (s, 6H), 1.21-1.16 (m, 1H), 0.57-0.54 (m, 2H), 0.36-0.33 (m, 2H). LC-MS: m/z 451.2 (M+H)⁺.

Compound 619—1-(4-((4-((cyclopropylmethyl)amino)-6-(6-(1,1-difluoroethyl)pyridin-2-yl)-1,3,5-triazin-2-yl)amino)pyridin-2-yl)cyclopropanecarbonitrile

¹H NMR (METHANOL-d₄) δ 8.64-8.57 (t, 1H), 8.54-8.53 (d, 1H), 8.26-8.25 (d, 1H), 8.09-8.05 (m, 1H), 7.86-7.83 (m, 1H), 7.45-7.42 (m, 1H), 3.46-3.44 (d, 2H), 2.16-2.06 (q, 3H), 1.80-1.71 (m, 4H), 1.19-1.12 (m, 1H), 0.56-0.53 (m, 2H), 0.37-0.34 (m, 2H). LC-MS: m/z 449.3 (M+H)⁺.

N2-isopropyl-6-(6-(2,2,2-trifluoroethylamino)pyridin-2-yl)-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₄): δ 10.6-10.2 (m, 1H), 8.7-8.4 (m, 2H), 8.4-7.8 (m, 2H), 7.8-7.5 (m, 2H), 7.4-7.2 (m, 1H), 6.8 (m, 1H), 4.5-4.0 (m, 3H), 1.2 (d, J=4.8 Hz, 1H). LC-MS: m/z 473.2 (M+H)⁺.

The following compounds were prepared according to the general procedure shown in Scheme 4:

The following intermediates prepared according to Example 4, Step 1, using appropriate reagents:

Preparation of (4,6-Dichloro-[1,3,5]triazin-2-yl)-oxetan-3-yl-amine

Using the standard procedure described above yielded the title compound which was directly used in the next step.

Preparation of (4,6-Dichloro-[1,3,5]triazin-2-yl)-(3-oxa-bicyclo[3.1.0]hex-6-yl)-amine

Using the standard procedure described above except DIPEA (1 eq) was added to give (4,6-Dichloro-[1,3,5]triazin-2-yl)-(3-oxa-bicyclo[3.1.0]hex-6-yl-amine as a white solid.

LCMS: m/z 247.1 (M+H)⁺.

The following intermediates were prepared according to Example 4, Step 2:

Preparation of 4-chloro-6-(2-fluoro-3-methoxyphenyl)-N-(oxetan-3-yl)-1,3,5-triazin-2-amine

Using the standard procedure described above yielded the title compound.

LCMS: m/z 311.0 (M+H)⁺.

Step 2-9: Preparation of 4-chloro-6-(2-fluoro-5-methoxyphenyl)-N-(oxetan-3-yl)-1,3,5-triazin-2-amine

Using the standard procedure described above yielded the title compound.

LCMS: m/z 311.1 (M+H)⁺.

Preparation of N-((1R,5S,6r)-3-oxabicyclo[3.1.0]hexan-6-yl)-4-chloro-6-(2-fluoro phenyl)-1,3,5-triazin-2-amine

Using the standard procedure described above yielded the title compound

LCMS: m/z 306.9 (M+H)⁺.

Preparation of 4-chloro-6-(2-fluorophenyl)-N-isobutyl-1,3,5-triazin-2-amine

Using the standard procedure described yielded the title compound

LCMS: m/z 281.1 (M+H)⁺.

Preparation of 4-Chloro-6-(6-fluoro-5-methoxyphenyl)-N-isopropyl-1,3,5-tri-azin-2-amine

Using the standard procedure described above yielded the title compound as a white solid.

LCMS: m/z 297.1 (M+H)⁺.

Preparation of 4-(3-(1-((tert-butyldimethylsilyl)oxy)cyclopropyl)phenyl)-6-chloro-N-isopropyl-1,3,5-triazin-2-amine

Using the standard procedure described above yielded the title compound as a colorless oil.

The following compounds were synthesized using Example 4, Step 3 (Procedure C), utilizing appropriate intermediates and reagents:

Compound 621—1-(4-(2-fluorophenyl)-6-(5-fluoropyridin-3-ylamino)-1,3,5-triazin-2-ylamino)-2-methylpropan-2-ol

¹H NMR (METHANOL-d₄) δ 8.68-9.01 (m, 1H), 8.44-8.51 (m, 2H), 8.20-8.23 (m, 1H), 8.76-8.77 (m, 1H), 7.38-7.47 (m, 2H), 7.76-7.81 (m, 2H), 3.56-3.61 (m, 2H), 1.27-1.31 (m, 6H). LC-MS: m/z 373.3 (M+H)⁺.

Compound 622—1-(4-(2-fluorophenyl)-6-(6-fluoropyridin-3-ylamino)-1,3,5-triazin-2-ylamino)-2-methylpropan-2-ol

¹H NMR (METHANOL-d₄) δ 8.08-8.15 (m, 1H), 7.96-7.97 (m, 2H), 7.83-7.89 (m, 1H), 7.51-7.54 (m, 2H), 7.21-7.31 (m, 2H), 3.53-3.55 (m, 2H), 3.56-3.61 (m, 2H), 1.25-1.27 (m, 6H). LC-MS: m/z 373.2 (M+H)⁺.

Compound 623—1-(4-(2-fluorophenyl)-6-(2-fluoropyridin-4-ylamino)-1,3,5-triazin-2-ylamino)-2-methylpropan-2-ol

¹H NMR (METHANOL-d₄) δ 8.27-8.55 (m, 1H), 8.25-8.27 (m, 2H), 7.77-7.78 (m, 1H), 7.39-7.47 (m, 2H), 7.16-7.19 (m, 1H), 3.51-3.53 (m, 2H), 1.28 (m, 6H). LC-MS: m/z 373.2 (M+H)⁺.

Compound 624-6-(2-Fluoro-3-methoxy-phenyl)-N-oxetan-3-yl-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ 10.53-10.43 (m, 1H), 8.89-7.92 (m, 4H), 7.55-7.48 (m, 1H), 7.39-7.34 (m, 1H), 7.25 (t, J=8.25 Hz, 1H), 5.07-5.01 (m, 1H), 4.83-4.77 (m, 2H), 4.61 (t, J=6.18 Hz, 2H), 3.88 (s, 3H). LC-MS: m/z 437.2 (M+H)⁺.

Compound 625—6-(2-Fluoro-phenyl)-N-(5-fluoro-pyridin-3-yl)-N′-oxetan-3-yl-[1,3,5]triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ 10.17-10.12 (m, 1H), 8.77-7.98 (m, 5H), 7.61-7.59 (m, 1H), 7.37-7.34 (m., 2H), 5.09-5.06 (m, 1H), 4.81-4.80 (m, 2H), 4.62-4.61 (m, 2H). LC-MS: m/z 357.1 (M+H)⁺.

Compound 626—6-(2-Fluoro-phenyl)-N-(6-fluoro-pyridin-3-yl)-N′-oxetan-3-yl-[1,3,5]triazine-2,4-diamine

¹H NMR (DMSO-d6) δ 10.06-9.59 (m, 1H), 8.71-8.29 (m, 3H), 8.07-7.95 (m, 1H), 7.61-7.56 (m., 1H), 7.34-7.28 (m, 2H), 7.16-7.15 (m, 1H), 5.06-4.95 (m, 1H), 4.77-4.76 (m, 2H), 4.59-4.56 (m, 2H). LC-MS: m/z 357.1 (M+H)⁺.

Compound 627—6-(2-Fluoro-phenyl)-N-oxetan-3-yl-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.56-8.47 (m, 2H), 8.17-7.89 (m, 2H), 7.58-7.53 (m, 1H), 7.31-7.21 (m., 2H), 5.34-5.24 (m, 1H), 5.01-4.99 (m, 2H), 4.80-4.73 (m, 2H). LC-MS: m/z 407.2 (M+H)⁺.

Compound 628—6-(2-Fluoro-phenyl)-N-(2-fluoro-pyridin-4-yl)-N′-oxetan-3-yl-[1,3,5]triazine-2,4-diamine

¹H NMR (DMSO-d6) δ 10.45-10.39 (m, 1H), 8.86-8.68 (m, 1H), 8.08-7.69 (m, 5H), 7.37-7.33 (m., 2H), 5.11-5.09 (m, 1H), 4.85-4.80 (m, 2H), 4.64-4.59 (m, 2H). LC-MS: m/z 357.1 (M+H)⁺.

Compound 629—6-(2-Fluoro-phenyl)-N-oxetan-3-yl-N′-(5-trifluoromethyl-pyridin-3-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ 10.34-10.20 (m, 1H), 9.25-8.50 (m, 3H), 8.06-8.00 (m, 1H), 7.77-7.72 (m., 1H), 7.39-7.25 (m, 2H), 5.10-4.99 (m, 1H), 4.79-4.56 (m, 2H), 4.59-4.52 (m, 2H). LC-MS: m/z 407.3 (M+H)⁺.

Compound 630—6-(2-Fluoro-5-methoxy-phenyl)-N-isopropyl-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.70-7.82 (m, 3H), 7.67-7.61 (m, 1H), 7.16-7.06 (m, 2H), 4.30-4.25 (m., 1H), 3.84 (s, 3H), 4.26-4.23 (m, 1H), 1.317-1.279 (d, J=15.2 MHz, 3H). LC-MS: m/z 422.9 (M+H)⁺.

Compound 631—6-(2-Fluoro-3-methoxy-phenyl)-N-isopropyl-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.65-7.83 (m, 3H), 7.59-7.56 (m, 1H), 7.24-7.16 (m, 2H), 4.28-4.25 (m., 1H), 3.92 (s, 3H), 1.315-1.272 (d, J=17.2 MHz, 3H). LC-MS: m/z 423.0 (M+H)⁺.

Compound 632—2-(4-((4-(2-fluorophenyl)-6-(isopropylamino)-1,3,5-triazin-2-yl)amino)pyridin-2-yl)propan-2-ol

¹H NMR (DMSO-d₆) δ 8.30-8.08 (m, 3H), 7.70-7.51 (m, 2H), 7.29 (t, 1H), 7.24-7.19 (dd, 1H), 4.36-4.34 (m, 1H), 1.57 (s, 6H), 1.32-1.28 (m, 6H). LC-MS: m/z 383.3 (M+H)⁺.

Compound 633—2-Fluoro-3-[4-isopropylamino-6-(2-trifluoromethyl-pyridin-4-ylamino)-[1,3,5]triazin-2-yl]-phenol

¹H NMR (METHANOL-d₄) δ 8.70-8.68 (d, J=6 Hz, 1H), 8.56-8.49 (m, 1H), 7.90-7.89 (m, 1H), 7.59-7.57 (m., 1H), 7.33-7.23 (m, 2H), 4.39-4.35 (m, 1H), 1.407-1.391 (d, J=6.4 Hz, 3H). LC-MS: m/z 409.3 (M+H)⁺.

Compound 634—4-Fluoro-3-[4-isopropylamino-6-(2-trifluoromethyl-pyridin-4-ylamino)-[1,3,5]triazin-2-yl]-phenol

¹H NMR (METHANOL-d₄) δ 8.70-8.68 (d, J=5.6 MHz, 1H), 8.56-8.53 (m, 1H), 7.91-7.89 (m, 1H), 7.58-7.55 (m., 1H), 7.27-7.15 (m, 2H), 4.40-4.35 (m, 1H), 1.40-1.39 (d, J=6.4 MHz, 3H). LC-MS: m/z 409.1 (M+H)⁺.

Compound 635—6-(2-Fluoro-5-methoxy-phenyl)-N-oxetan-3-yl-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ 10.73-10.63 (m, 1H), 9.11-8.11 (m, 4H), 7.82-7.69 (m, 1H), 7.47 (t, J=9.62 Hz, 1H), 7.35 (brs., 1H), 5.34-5.20 (m, 1H), 5.04-5.00 (m, 2H), 4.83-4.80 (m, 2H), 3.80 (s, 3H). LC-MS: m/z 437.3 (M+H).

Compound 636—6-(2-Fluorophenyl)-fluoro-pyridin-4-yl)-N′-(3-oxa-bicyclo[3.1.0]hex-6-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ 10.50-10.21 (m, 1H), 8.35-7.85 (m, 4H), 7.62-7.52 (m, 2H), 7.37-7.29 (m, 2H), 3.96-3.88 (m., 2H), 3.69-3.61 (m, 2H), 2.66-2.49 (m, 1H), 1.94-1.87 (m, 2H). LC-MS: m/z 383.1 (M+H)⁺.

Compound 637—6-(2-Fluoro-phenyl)-N-(6-fluoro-pyridin-3-yl)-N′-(3-oxa-bicyclo[3.1.0]hex-6-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.71-8.57 (m, 1H), 8.30 (brs. 1H), 8.18 (brs. 1H), 7.81 (brs. 1H), 7.50-7.43 (m., 2H), 7.21 (brs. 1H), 4.12-4.02 (m, 2H), 3.81-3.75 (m, 2H), 2.80-2.68 (m, 1H), 2.14-2.09 (m, 2H). LC-MS: m/z 383.2 (M+H)⁺.

Compound 638—6-(2-Fluoro-phenyl)-N-(5-fluoro-pyridin-3-yl)-N′-(3-oxa-bicyclo[3.1.0]hex-6-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.67 (brs., 2H), 8.20-8.07 (m, 2H), 7.56 (brs., 1H), 7.32-7.21 (m, 2H), 4.14-4.05 (m., 2H), 3.83-3.78 (m, 2H), 2.71-2.68 (m, 1H), 2.00-1.96 (m, 2H). LC-MS: m/z 383.1 (M+H)⁺.

Compound 639—{3-[4-Isopropylamino-6-(2-trifluoromethyl-pyridin-4-ylamino)-[1,3,5]triazin-2-yl]-phenyl}-methanol

¹H NMR (METHANOL-d₄) δ 8.37-8.41 (m, 3H), 8.31-8.28 (m, 2H), 7.53-7.53 (d, J=6 Hz, 1H), 7.46-7.45 (m, 1H), 4.685 (s, 2H), 4.52-4.18 (m, 1H), 1.31-1.30 (d, J=6.4 Hz, 6H). LC-MS: m/z 405.1 (M+H)⁺.

Compound 640—3-[4-Isopropylamino-6-(2-trifluoromethyl-pyridin-4-ylamino)-[1,3,5]triazin-2-yl]-phenol

¹H NMR (METHANOL-d₄) δ 8.679-8.245 (m, 2H), 7.95-7.83 (m, 2H), 7.32-7.282 (m, 1H), 7.00-6.98 (d, J=8 Hz, 1H), 4.31-4.28 (m, 1H), 1.34-1.25 (m, 6H). LC-MS: m/z 391.2 (M+H)⁺.

Compound 641—3-(4-((2-hydroxy-2-methylpropyl)amino)-6-((2-(trifluoromethyl)pyridin-4-yl)amino)-1,3,5-triazin-2-yl)phenol

¹H NMR (METHANOL-d₄) δ 8.72-8.70 (m, 1H), 8.68-8.38 (m, 1H), 8.28-7.96 (m, 1H), 7.79-7.70 (m, 2H), 7.51-7.44 (m, 1H), 7.23-7.17 (m, 1H), 3.65 (d, 2H), 1.36 (d, 6H). LC-MS: m/z 421.2 (M+H)⁺.

Compound 642—5-(4-((3,5-difluorophenyl)amino)-6-(isopropylamino)-1,3,5-triazin-2-yl)benzene-1,3-diol

¹H NMR (METHANOL-d₄) δ 7.51-7.48 (m, 2H), 7.30 (d, 2H), 6.52-6.41 (m, 2H), 4.23-4.21 (m, 1H), 1.35-1.27 (m, 6H). LC-MS: m/z 374.1 (M+H)⁺.

Compound 644—6-(3-Chloro-5-trifluoromethyl-phenyl)-N-isopropyl-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.79-8.50 (m, 3H), 8.49-7.86 (m, 2H), 7.77-7.76 (m, 1H), 4.26-4.23 (m, 1H), 1.32-1.30 (d, 6H). LC-MS: m/z 477.1 (M+H)⁺.

Compound 645—6-(6-aminopyridin-3-yl)-N2-(3,5-difluorophenyl)-N4-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ 9.80 (d, 1H), 8.87 (d, 1H), 8.52-7.29 (m, 5H), 6.78-6.50 (m, 3H), 4.29-4.11 (m, 1H), 1.20 (d, 6H). LC-MS: m/z 358.2 (M+H)⁺.

Compound 646—3-(4-(tert-butylamino)-6-((3-fluoro-5-(methylsulfonyl)phenyl)amino)-1,3,5-triazin-2-yl)phenol

¹H NMR (METHANOL-d₄) δ 8.37-7.74 (m, 4H), 7.25 (br, 2H), 6.92 (br, 1H), 3.13 (s, 3H), 1.51 (s, 6H). LC-MS: m/z 432.0 (M+H)⁺.

Compound 647—6-(3-chloro-5-fluorophenyl)-N2-isopropyl-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

1H NMR (DMSO-d₆) δ 10.39-10.56 (m, 1H), 8.16-8.70 (m, 4H), 7.71-8.00 (m, 3H), 4.16-4.35 (m, 1H), 1.25 (dd, J=6.4, 6H). LC-MS: m/z 427.1 (M+H)⁺.

Compound 648—N2-isopropyl-6-(2-methoxypyridin-3-yl)-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.61-8.27 (m, 3H), 8.23-7.88 (m, 2H), 7.09-7.06 (m, 1H), 4.28-4.25 (m, 1H), 4.01 (s, 3H), 1.31-1.28 (m, 6H). LC-MS: m/z 406.1 (M+H)⁺.

Example 9. Preparation of Compounds of Formula I Wherein Ring A is Substituted Aryl or Heteroaryl

The compounds of this Example are prepared by the general method in Scheme 9, set forth below.

Compound 649—6-(2-aminopyrimidin-5-yl)-N2-(3,5-difluorophenyl)-N4-isopropyl-1,3,5-triazine-2,4-diamine

Example 9, Step 1 Preparation of 6-chloro-N²-(3,5-difluorophenyl)-N4-isopropyl-1,3,5-triazine-2,4-diamine

To a solution of 4,6-dichloro-N-isopropyl-1,3,5-triazin-2-amine (1 g, 4.83 mmol) in THF (10 mL) was added 3,5-difluoro aniline (0.62 g, 4.83 mmol), ^(t)BuONa (0.93 g, 9.66 mol) and Pd(dppf)Cl₂ (0.35 g, 0.48 mmol). The mixture was stirred at 80° C. under N2 protection fro 2 hrs. The reaction was quenched by water and extracted by EtOAc. The organic layer was dried, concentrated and purified to afford 6-chloro-N2-(3,5-difluorophenyl)-N4-isopropyl-1,3,5-triazine-2,4-diamine as white solid.

Example 9, Step 2

To a mixture of 5-chloro-N1-(3,5-difluorophenyl)-N3-isopropylbenzene-1,3-diamine (50 mg, 0.17 mmol), 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyrimidin-2-amine (37 mg, 0.17 mmol) and Cs₂CO₃ (108 mg, 0.34 mmol) in dioxane/water (0.8 mL/0.16 mL) was added Pd(PPh₃)₄ (19 mg, 0.017 mmol). The mixture was heated to 80° C. for 2 hours. The mixture was concentrated and purified by a standard method to give 6-(2-aminopyrimidin-5-yl)-N2-(3,5-difluoro-phenyl)-N4-isopropyl-1,3,5-triazine-2,4-diamine.

¹H NMR (METHANOL-d4): δ 9.11-9.17 (m, 2H), 7.49-7.50 (m, 2H), 6.51-6.55 (m, 1H), 4.22-4.34 (m, 1H), 1.35 (d, J=6.8 Hz, 6H). LC-MS: m/z 359.2 (M+H)⁺.

The following compounds were prepared according Example 8, method B, using appropriate intermediates and reagents.

Compound 650—6-(4-(isopropylamino)-6-((2-(trifluoromethyl)pyridin-4-yl)amino)-1,3,5-triazin-2-yl)pyridin-2(1H)-one

¹H NMR (METHANOL-d₄) δ 8.70-8.25 (m, 2H), 8.15-8.06 (m, 1H), 7.81-7.50 (m, 1H), 6.89 (br, 1H), 4.31-4.23 (m, 1H), 1.34-1.29 (m, 6H). LC-MS: m/z 392.1 (M+H)⁺.

Compound 651—6-(4-(isopropylamino)-6-((2-(trifluoromethyl)pyridin-4-yl)amino)-1,3,5-triazin-2-yl)picolinamide

¹H NMR (DMSO-d₆) δ 10.56 (br, 1H), 8.87-8.85 (m, 1H), 8.68-8.04 (m, 6H), 7.92-7.96 (m, 1H), 7.63-7.59 (m, 1H), 7.58-7.48 (m, 1H), 4.20-4.15 (m, 1H), 1.25 (d, 6H). LC-MS: m/z 418.2 (M+H)⁺.

Compound 652—2,2,2-trifluoro-1-(3-(4-(isopropylamino)-6-((2-(trifluoromethyl)pyridin-4-yl)amino)-1,3,5-triazin-2-yl)phenyl)ethanol

¹H NMR (METHANOL-d₄) δ 8.76-8.40 (m, 4H), 8.32-7.52 (m, 3H), 5.16-5.11 (m, 1H), 4.51-4.28 (m, 1H), 1.34 (d, 6H). LC-MS: m/z 473.2 (M+H)⁺.

Compound 653—N-Isopropyl-6-(3-methanesulfinyl-phenyl)-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.81-8.28 (m, 4H), 7.91-7.71 (m, 3H), 4.51-4.28 (m, 1H), 2.88 (s, 3H), 1.36-1.33 (m, 6H). LC-MS: m/z 437.2 (M+H)⁺.

Compound 654—6-(3-(aminomethyl)phenyl)-N2-isopropyl-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d4) δ 8.66-8.40 (m, 4H), 7.96 (br, 1H), 7.77-7.67 (m, 2H), 4.52-4.31 (m, 1H), 4.24 (s, 2H), 1.34 (d, 6H). LC-MS: m/z 404.2 (M+H)⁺.

Compound 655—6-(3-chloro-5-methoxyphenyl)-N2-isopropyl-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ 10.44 (d, 1H), 8.71 (s, 1H), 8.57-8.55 (m, 1H), 8.30-8.08 (m, 1H), 7.92-7.79 (m, 3H), 6.97 (s, 1H), 4.35-4.13 (m, 1H), 3.86 (s, 3H), 1.24 (d, 6H). LC-MS: m/z 439.2 (M+H)⁺.

Compound 657—N-Isopropyl-6-(3-methanesulfonyl-phenyl)-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine

¹H NMR (METHANOL-d₄) δ 8.95 (s, 1H), 8.76-7.98 (m, 5H), 7.80-7.76 (m, 1H), 4.49-4.22 (m, 1H), 3.17 (s, 3H), 1.34-1.27 (m, 6H). LC-MS: m/z 453.2 (M+H)⁺.

Compound 658—3-Fluoro-5-[4-isopropylamino-6-(2-trifluoromethyl-pyridin-4-ylamino)-[1,3,5]triazin-2-yl]-phenol

¹H NMR (METHANOL-d₄) δ 8.63-8.63 (m, 2H), 7.95 (s, 1H), 7.56-7.49 (m, 2H), 6.80-6.78 (d, J=8.8 Hz, 1H), 4.31 (s, 1H), 1.36-1.34 (d, J=6 Hz, 6H). LC-MS: m/z 409.1 (M+H)⁺.

Compound 660—6-(3-fluoro-5-(trifluoromethyl)phenyl)-N2-isopropyl-N4-(3-(methylsulfonyl)phenyl)-1,3,5-triazine-2,4-diamine

¹H NMR (Methanol-d₄) δ 8.98 (s, 1H), 8.55 (s, 1H), 8.37 (d, 1H), 7.99-7.75 (m, 1H), 7.61-7.53 (m, 3H), 4.37-4.34 (m, 1H), 3.15 (d, 3H), 1.30 (d, 6H). LC-MS: m/z 470.0 (M+H)⁺.

Compound 662—6-(3-fluoro-5-methoxyphenyl)-N2-isopropyl-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (DMSO-d₆) δ 10.30 (d, 1H), 8.67-8.04 (m, 3H), 8.04-7.58 (m, 3H), 7.08-7.03 (m, 1H), 4.35-4.10 (m, 1H), 3.83 (s, 3H), 1.21 (d, 3H). LC-MS: m/z 423.2 (M+H)⁺.

Compound 663—1-(3-(4-(isopropylamino)-6-((2-(trifluoromethyl)pyridin-4-yl)amino)-1,3,5-triazin-2-yl)phenyl)ethanol

¹H NMR (METHANOL-d₄) δ 8.74-8.29 (m, 4H), 8.28-7.80 (m, 1H), 7.57-7.43 (m, 2H), 4.48-4.26 (m, 1H), 1.49 (d, 3H), 1.31 (d, 6H). LC-MS: m/z 419.2 (M+H)⁺.

6-(3-(1-((tert-butyldimethylsilyl)oxy)cyclopropyl)phenyl)-N2-isopropyl-N⁴-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

LCMS: m/z 545.3 (M+H)⁺.

To a solution of 6-(3-(1-((tert-butyldimethylsilyl)oxy)cyclopropyl) phenyl)-N2-isopropyl-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine (510 mg, 0.936 mmol) in anhydrous THF (15 mL) was TBAF (490 mg, 1.872 mmol) at room temperature. The mixture was stirred at r.t. for 2 hours. The mixture was partitioned between EtOAc and water. The organic layer was washed with brine, dried over Na₂SO₄, then concentrated. The crude product was purified by a standard method to give 1-(3-(4-(isopropylamino)-6-((2-(trifluoromethyl)pyridin-4-yl)amino)-1,3,5-triazin-2-yl)phenyl)cyclopropanol.

Compound 664—1-(3-(4-(isopropylamino)-6-((2-(trifluoromethyl)pyridin-4-yl)amino)-1,3,5-triazin-2-yl)phenyl)cyclopropanol

¹H NMR (METHANOL-d₄) δ 8.67-8.46 (m, 2H), 8.31-8.21 (m, 2H), 7.84-7.83 (m, 1H), 7.52-7.39 (m, 2H), 4.45-4.23 (m, 1H), 1.32-1.30 (d, J=8.0 Hz, 6H), 1.23-1.22 (m, 2H), 1.09-1.06 (m, 2H).

LC-MS: m/z 431.2 (M+H)⁺.

Compound 665—3-(hydroxymethyl)-5-(4-(isopropylamino)-6-((2-(trifluoromethyl)pyridin-4-yl)amino)-1,3,5-triazin-2-yl)phenol

¹H NMR (CDCl₃) δ 10.40-10.24 (m, 1H), 9.56 (s, 1H), 8.68-8.26 (m, 2H), 7.93-7.59 (m, 3H), 6.94 (s, 1H), 5.23-5.20 (m, 1H), 4.50-4.49 (d, J=5.6, 2H), 4.20-4.12 (m, 1H) 1.26-1.23 (m, 6H). LC-MS: m/z 421.2 (M+H)⁺.

The following compounds were prepared according to Scheme 5 using appropriate intermediates and reagents:

Compound 667—4-(4-Phenyl-6-phenylamino-[1,3,5]triazin-2-ylamino)-piperidine-1-carboxylic acid tert-butyl ester

¹H NMR (CDCl3) δ: 8.23-8.82 (m, 2H), 8.53-7.66 (m., 2H), 7.33-7.48 (m, 3H), 7.25-7.31 (m, 2H), 6.98-7.09 (m., 2H), 5.05-5.29 (m, 1H), 3.95-4.20 (m, 3H), 2.85-2.97 (m, 2H), 2.03 (d, J=12 Hz, 2H), 1.37-1.42 (m, 11H). LC-MS: m/z 447.0 (M+H)⁺.

Example 10: Preparation of Compounds of Formula 1 Via N-Arylation of triazine-amine Cross-Coupling

Example 10, Step 1: Preparation of N2-isopropyl-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine

To the solution of 4-chloro-N-isopropyl-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazin-2-amine (300 mg, 0.94 mmol) in THF (5 mL) was added NH₃/H₂O (8 mL). The mixture was stirred at 80° C. overnight. TLC (PE:EA=1:1) showed the reaction was complete. The mixture was washed with H₂O and ethyl acetate. The organic layer was dried over Na₂SO₄, filtered concentrated to give N2-isopropyl-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine as a yellow solid which was used without further purification. LC-MS: m/z 299.8 (M+H)⁺.

The following intermediates were prepared using the procedure in Example 10, Step 1:

6-[6-(1,1-Difluoro-ethyl)-pyridin-2-yl]-N-isopropyl-[1,3,5]triazine-2,4-diamine

LC-MS: m/z 295.2 (M+H)⁺.

6-(6-Difluoromethyl-pyridin-2-yl)-N-isopropyl-[1,3,5]triazine-2,4-diamine

LC-MS: m/z 281.1 (M+H)⁺.

1-(4-amino-6-(6-(trifluoromethyl) pyridin-2-yl)-1,3,5-triazin-2-ylamino)-2-methylpropan-2-ol

LC-MS: m/z 329.0 (M+H)⁺.

Step 2: Preparation of 1-(4-(4-(isopropylamino)-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazin-2-ylamino)pyridin-2-yl)cyclopropanecarbonitrile

To a solution of N2-isopropyl-6-(6-(trifluoromethyl)pyridin-2-yl)-1,3,5-triazine-2,4-diamine (120 mg, 0.4 mmol) in anhydrous toluene (5 mL) was added 1-(4-chloro-pyridin-2-yl)cyclopropanecarbonitrile (89 mg, 0.48 mmol), Cs₂CO₃ (262 mg, 0.8 mmol), BINAP (24.9 mg, 0.04 mmol), and Pd₂(dba)₃ (36.6 mg, 0.04 mmol) under N₂. The mixture was stirred at 110° C. for 30 min under M.W. irradiation. The mixture was quenched by water and extracted with ethyl acetate. The organic layer was dried with anhydrous Na₂SO₄, concentrated and purified by a standard method to give 1-(4-(4-(isopropylamino)-6-(6-(trifluoromethyl)-pyridin-2-yl)-1,3,5-triazin-2-ylamino)pyridin-2-yl)cyclopropanecarbonitrile. The following compounds were prepared from the appropriate intermediates using the procedure in Example 10, Step 2:

Compound 669—1-{4-[4-Isopropylamino-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazin-2-ylamino]-pyridin-2-yl}-cyclopropanecarbonitrile

¹H NMR (METHANOL-d₄) δ 8.79-8.78 (m, 2H), 8.27 (d, J=5.6 Hz, 1H), 8.20 (t, J=8.2 Hz, 1H), 7.36 (dd, J=3.6 Hz, 2.0 Hz, 1H), 4.47 (m, 1H), 1.82-1.73 (m, 4H), 1.31 (d, J=4.0 Hz, 6H). LC-MS: m/z 441.2 (M+H)⁺.

Compound 670—1-[4-(5-Chloro-6-fluoro-pyridin-3-ylamino)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazin-2-ylamino]-2-methyl-propan-2-ol

Using the standard procedure described in except replacing BINAP with X-Phos and Cs₂CO₃ with t-BuONa to give 670.

¹H NMR (METHANOL-d₄) δ 8.82-8.63 (m, 2H), 8.39-8.38 (m, 1H), 8.22 (t, J=7.9 Hz, 1H), 7.98 (d, J=7.6 Hz, 1H), 3.63 (s, 1H), 3.55 (s, 1H), 1.30 (d, J=4.0 Hz, 6H). LC-MS: m/z 458.2 (M+H)⁺.

Compound 671—2-{4-[4-Isopropylamino-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazin-2-ylamino]-pyridin-2-yl}-2-methyl-propionitrile

¹H NMR (METHANOL-d₄) δ 8.77-8.73 (m, 1H), 8.50 (s, 1H), 8.40 (d, J=4.4 Hz, 1H), 8.23 (t, J=6.6 Hz, 1H), 8.00 (d, J=8.0 Hz, 1H), 7.57 (dd, J=3.6 Hz, 2.0 Hz, 1H), 4.49-4.41 (m, 1H), 1.74 (s, 6H), 1.34 (d, J=6.4 Hz, 6H). LC-MS: m/z 443.2 (M+H)⁺.

Compound 672—{4-[4-Isopropylamino-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazin-2-ylamino]-pyridin-2-yl}-acetonitrile

¹H NMR (METHANOL-d₄) δ 10.41 (s, 1H), 8.62 (dd, J=9.6 Hz, 8.0 Hz, 1H), 8.37 (d, J=2.4 Hz, 1H), 8.29 (dd, J=8.4 Hz, 1.9 Hz, 2H), 8.28 (s, 1H), 8.11 (d, J=7.6 Hz, 1H), 7.97-7.67 (m, 1H), 4.35-4.28 (m, 1H), 4.17 (s, 1H), 4.13 (s, 1H), 1.25 (d, J=6.8 Hz, 6H). LC-MS: m/z 415.3 (M+H)⁺.

Compound 673—6-(6-Difluoromethyl-pyridin-2-yl)-N-(2-difluoromethyl-pyridin-4-yl)-N′-isopropyl-[1,3,5]triazine-2,4-diamine

Using the standard procedure described in Example 10 Step 2 except replacing Cs₂CO₃ by t-BuONa yielded 673.

¹H NMR (METHANOL-d₄) δ 8.64-7.77 (m, 6H), 6.98-6.58 (m, 2H), 4.33-4.30 (m, 1H), 1.34 (d, J=6.4 Hz, 6H). LC-MS: m/z 408.2 (M+H)⁺.

Compound 674—1-{4-[4-Isopropylamino-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazin-2-ylamino]-pyridin-2-yl}-cyclopropanol

¹H NMR (METHANOL-d₄) δ 8.61-8.64 (q, J=7.6 Hz, 1H), 8.38 (s, 1H), 8.09-8.16 (m, 2H), 7.86-7.88 (d, J=7.6 Hz, 1H), 7.44-7.62 (m, 1H), 4.26-4.30 (m, 1H), 1.76-1.23 (m, 8H), 1.10-1.12 (q, J=4 Hz, 2H). LC-MS: m/z 432.2 (M+H)⁺.

Compound 675—6-[6-(1,1-Difluoro-ethyl)-pyridin-2-yl]-N-(2-difluoromethyl-pyridin-4-yl)-N′-isopropyl-[1,3,5]triazine-2,4-diamine

Using the standard procedure described in Example 10 Step 2 except replacing Cs₂CO₃ by t-BuONa yielded 675.

¹H NMR (METHANOL-d₄) δ 8.58-8.46 (m, 2H), 8.18-8.11 (m, 2H), 7.90-7.88 (m, 2H), 6.86-6.58 (m, 1H), 4.34-4.32 (m, 1H), 2.17-2.05 (m, 3H), 1.35 (d, J=7.2 Hz, 6H). LC-MS: m/z 422.2 (M+H)⁺.

Compound 676—N-(2-Fluoromethyl-pyridin-4-yl)-N′-isopropyl-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazine-2,4-diamine

Using the standard procedure described in Example 10 Step 2 except replacing Cs₂CO₃ by t-BuONa yielded 676.

¹H NMR (METHANOL-d₄) δ 8.72-8.70 (m, 1H), 8.40-7.98 (m, 5H), 5.55 (s, 1H), 5.43 (s, 1H), 4.52-4.33 (m, 1H), 1.34 (d, J=8.4 Hz, 6H). LC-MS: m/z 408.1 (M+H)⁺.

Compound 677—2-(4-{4-[6-(1,1-Difluoro-ethyl)-pyridin-2-yl]-6-isopropylamino-[1,3,5]triazin-2-ylamino}-pyridin-2-yl)-2-methyl-propionitrile

¹H NMR (METHANOL-d₄) δ 8.61 (d, J=6.8 Hz, 1H), 8.45 (s, 1H), 8.40 (d, J=5.2 Hz, 1H), 8.11 (t, J=7.6 Hz, 1H), 7.88 (d, J=8.0 Hz, 1H), 7.62 (s, 1H), 2.12 (t, J=19.2 Hz, 3H), 1.13 (d, J=6.4 Hz, 6H). LC-MS: m/z 439.2 (M+H)⁺.

Compound 678—2-{4-[4-(2-Hydroxy-2-methyl-propylamino)-6-(6-trifluoromethyl-pyridin-2-yl)-[1,3,5]triazin-2-ylamino]-pyridin-2-yl}-2-methyl-propionitrile

¹H NMR (METHANOL-d₄) δ 8.80-8.78 (m, 1H), 8.45 (s, 1H), 8.40 (t, J=5.6 Hz, 1H), 8.22 (t, J=7.8 Hz, 1H), 8.79 (d, J=8.0 Hz, 1H), 7.60 (dd, J=3.6 Hz, 2.0 Hz, 1H), 3.63 (d, J=11.6 Hz, 2H), 1.80 (s, 6H), 1.31 (d, J=6.0 Hz, 6H). LC-MS: m/z 473.2 (M+H)⁺.

Example 11: Preparation of Compounds of Formula I where Ring A is 6-aminopyridyl

Example 11, Step 1

The preparations of the following intermediates are analogous to the procedure as Scheme 3, Step 4, using the appropriate starting materials and intermediates:

Compound 679—Methyl (6-(4-(isopropylamino)-6-((2-(trifluoromethyl)pyridin-4-yl)amino)-1,3,5-triazin-2-yl)pyridin-2-yl)carbamate

LCMS: m/z 449.3 (M+H)⁺.

Compound 680—Methyl 6-(4-(2-hydroxy-2-methyl-propylamino)-6-(2-(trifluoromethyl)pyridin-4-ylamino)-1,3,5-triazin-2-yl)pyridin-2-yl-carbamate

LCMS: m/z 479.3 (M+H)⁺.

Compound 681—Methyl 6-(4-(neopentylamino)-6-(2-(trifluoromethyl)pyridin-4-ylamino)-1,3,5-triazin-2-yl)pyridin-2-ylcarbamate

LCMS: m/z 477.3 (M+H)⁺.

Compound 682—Methyl 6-(4-(3,5-difluorophenylamino)-6-(1-methylcyclopropylamino)-1,3,5-triazin-2-yl)pyridin-2-ylcarbamnate

LCMS: m/z 428.2 (M+H)⁺.

Methyl 6-(4-(1-methylcyclopropylamnino)-6-(2-(trifluoromethyl)pyridin-4-ylamino)-1,3,5-triazin-2-yl)pyridin-2-ylcarbamate

LCMS: m/z 461.3 (M+H)⁺.

Compound 683—Methyl 6-(4-(2-(trifluoromethyl)pyridin-4-ylamino)-6-(1,1,1-trifluoro-propan-2-ylamino)-1,3,5-triazin-2-yl)pyridin-2-ylcarbamate

LCMS: m/z 503.2 (M+H)⁺.

Compound 684—Methyl 6-(4-(3,5-difluorophenylamino)-6-(2-hydroxy-2-methylpropyl-amino)-1,3,5-triazin-2-yl)pyridin-2-ylcarbamate

LCMS: m/z 446.1 (M+H)⁺.

Preparation of methyl 6-(4-(tert-butylamino)-6-(2-(trifluoromethyl)pyridin-4-ylamino)-1,3,5-triazin-2-yl)pyridin-2-ylcarbamate

Using the standard procedure described above to give Compound 685—methyl 6-(4-(tert-butylamino)-6-(2-(trifluoromethyl)pyridin-4-ylamino)-1,3,5-triazin-2-yl) pyridin-2-ylcarbamate

LCMS: m/z 463.3 (M+H)⁺.

Compound 686—Methyl 6-(4-(2-(1,1-difluoroethyl)pyridin-4-ylamino)-6-(isopropyl-amino)-1,3,5-triazin-2-yl)pyridin-2-ylcarbamate

LCMS: m/z 445.1 (M+H)⁺.

Example 11, Step 2: Preparation of 6-(6-aminopyridin-2-yl)-N2-isopropyl-N4-(2-(trifluoromethyl)pyridin-4-yl)-1, 3,5-triazine-2,4-diamine

To a solution of 6-(6-Chloro-pyridin-2-yl)-N-oxetan-3-yl-N′-(2-trifluoromethyl-pyridin-4-yl)-[1,3,5]triazine-2,4-diamine (170 mg, 0.38 mmol) in methanol (6 mL) was added 5 pellets of KOH. The mixture was heated to 80° C. for 12 hours. TLC (ethyl acetate) showed that the reaction was complete. The mixture was adjusted pH to 7 and filtered, the filtrate was concentrated and purified by a standard method to give 6-(6-aminopyridin-2-yl)-N2-isopropyl-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine.

The following compounds were prepared according to the procedure set forth in Example 11, Step 2, using appropriate starting materials and reagents:

Compound 687—6-(6-aminopyridin-2-yl)-N2-isopropyl-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄): δ 8.5-8.65 (m, 1.5H), 7.8-8.3 (in, 3.5H), 7.2 (m, 1H), 4.2-4.6 (m, 1H), 1.25-1.4 (m, 6H). LC-MS: m/z 391.3 (M+H)⁺.

Compound 689—6-(6-aminopyridin-2-yl)-N2-neopentyl-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄): δ 8.75 (m, 1H), 8.1-8.6 (m, 2H), 7.6-7.8 (m, 2H), 6.85 (m, 1H), 3.4-3.5 (m, 2H), 1.0 (s, 9H). LC-MS: m/z 419.3 (M+H)⁺.

Compound 690—6-(6-aminopyridin-2-yl)-N2-isobutyl-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

Compound 691—1-(4-(6-aminopyridin-2-yl)-6-(3,5-difluorophenylamino)-1,3,5-triazin-2-ylamino)-2-methylpropan-2-ol

1H NMR (METHANOL-d₄): δ 8.6-7.6 (m, 3H), 7.55-6.5 (m, 3H), 3.5-3.7 (m, 2H), 1.1-1.4 (m, 6H). LC-MS: m/z 338.2 (M+H)⁺.

Compound 692—6-(6-aminopyridin-2-yl)-N2-(1-methylcyclopropyl)-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

1H NMR (METHANOL-d₄): δ 8.88 (m, 1H), 8.5 (m, 1H), 7.85 (m, 1H), 7.7 (m, 1H), 7.6 (m, 1H), 6.75 (m, 1H), 1.52 (s, 3H), 0.75-0.95 (m, 4H). LC-MS: m/z 403.2 (M+H)⁺.

Compound 693—6-(6-aminopyridin-2-yl)-N2-(3,5-difluorophenyl)-N4-(1-methylcyclopropyl)-1,3,5-triazine-2,4-diamine

1H NMR (METHANOL-d₄): δ 7.5-7.58 (m, 4H), 6.5-6.8 (m, 2H), 1.5 (s, 3H), 0.75-0.95 (m, 4H). LC-MS: m/z 370.2 (M+H)⁺.

Compound 694—6-(6-aminopyridin-2-yl)-N2-(2-(trifluoromethyl)pyridin-4-yl)-N4-(1,1,1-trifluoropropan-2-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄): δ 78.63-7.75 (m, 4H), 7.6 (m, 1H), 6.68 (m, 1H), 5.5-5.0 (m, 1H), 1.48 (m, 3H). LC-MS: m/z 445.2 (M+H)⁺.

Compound 695—6-(6-aminopyridin-2-yl)-N2-tert-butyl-N4-(2-(trifluoromethyl)pyridin-4-yl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄): δ 8.55-8.65 (m, 2H), 7.9-8.25 (m, 2H), 7.8-7.9 (m, 1H), 7.2 (m, 1H), 1.55 (m, 9H). LC-MS: m/z 405.2 (M+H)⁺.

Compound 696—6-(6-aminopyridin-2-yl)-N2-(2-(1,1-difluoroethyl)pyridin-4-yl)-N4-isopropyl-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄): δ 8.55-8.2 (m, 2H), 8.0-7.55 (m, 3H), 6.75 (m, 1H), 4.55-4.2 (m, 1H), 2.0 (t, 3H), 1.3 (d, J=6.4 Hz, 3H). LC-MS: m/z 387.3 (M+H)⁺.

Compound 697—N-(6-(4-(isopropylamino)-6-(2-(trifluoromethyl)pyridin-4-ylamino)-1,3,5-triazin-2-yl)pyridin-2-yl)acetamide

¹H NMR (METHANOL-d₄): δ 8.7-8.5 (m, 2H), 8.3-7.8 (m, 4H), 4.5-4.2 (m, 1H), 2.23 (s, 3H), 1.25-1.35 (m, 6H). LC-MS: m/z 433.2 (M+H)⁺.

Compound 698—6-(6-aminopyridin-2-yl)-N2-(tert-butyl)-N4-(3,5-difluorophenyl)-1,3,5-triazine-2,4-diamine

1H NMR (METHANOL-d₄): δ 7.68-7.48 (m, 4H), 6.73-6.55 (m, 2H), 1.58 (s, 9H). LC-MS: m/z 372.2 (M+H)⁺.

Compound 699—6-(6-aminopyridin-2-yl)-N2-(cyclopropylmethyl)-N4-(3,5-difluorophenyl)-1,3,5-triazine-2,4-diamine

¹H NMR (METHANOL-d₄): δ 7.71-7.50 (m, 4H), 6.74-6.72 (m, 1H), 6.56-6.54 (m, 1H), 3.43-3.36 (m, 2H), 1.18-1.72 (m, 1H), 0.56-0.54 (m, 2H), 0.32-0.31 (m, 2H). LC-MS: m/z 370.1 (M+H)⁺.

Example 12. Enzymatic and Cell Assays

Enzymatic Assay.

Compounds are assayed for IDH2 R172K inhibitory activity through a cofactor depletion assay. Compounds are preincubated with enzyme, then the reaction is started by the addition of NADPH and α-KG, and allowed to proceed for 60 minutes under conditions previously demonstrated to be linear with respect for time for consumption of both cofactor and substrate. The reaction is terminated by the addition of a second enzyme, diaphorase, and a corresponding substrate, resazurin. Diaphorase reduces resazurin to the highly fluorescent resorufin with the concomitant oxidation of NADPH to NADP, both halting the IDH2 reaction by depleting the available cofactor pool and facilitating quantitation of the amount of cofactor remaining after a specific time period through quantitative production of an easily detected fluorophore.

Specifically, into each of 12 wells of a 384-well plate, 1 μl of 100× compound dilution series is placed, followed by the addition of 40 μl of buffer (50 mM potassium phosphate (K₂HPO₄), pH 7.5; 150 mM NaCl; 10 mM MgCl₂, 10% glycerol, 0.05% bovine serum albumin, 2 mM beta-mercaptoethanol) containing 1.25 μg/ml IDH2 R172K. The test compound is then incubated for one hour at room temperature with the enzyme; before starting the IDH2 reaction with the addition of 10 μl of substrate mix containing 50 μM NADPH and 6.3 mM α-KG in the buffer described above. After a further one hour of incubation at room temperature, the reaction is halted and the remaining NADPH measured through conversion of resazurin to resorufin by the addition of 25 μl Stop Mix (36 μg/ml diaphorase enzyme and 60 μM resazurin; in buffer). After one minute of incubation the plate is read on a plate reader at Ex544/Em590.

For determination of the inhibitory potency of compounds against IDH2 R140Q in an assay format similar to the above, a similar procedure is performed, except that the final testing concentration is 0.25 μg/ml IDH2 R140Q protein, 4 μM NADPH and 1.6 mM α-KG.

For determination of the inhibitory potency of compounds against IDH2 R140Q in a high throughput screening format, a similar procedure is performed, except that 0.25 μg/ml IDH2 R140Q protein was utilized in the preincubation step, and the reaction is started with the addition of 4 μM NADPH and 8 M α-KG.

U87MG pLVX-IDH2 R140Q-neo Cell Based Assay.

U87MG pLVX-IDH2 R140Q-neo cells are grown in T125 flasks in DMEM containing 10% FBS, 1× penicillin/streptomycin and 500 μg/mL G418. They are harvested by trypsin and seeded into 96 well white bottom plates at a density of 5000 cell/well in 100 μl/well in DMEM with 10% FBS. No cells are plated in columns 1 and 12. Cells are incubated overnight at 37° C. in 5% CO₂. The next day compounds are made up at 2× concentration and 100 ul are added to each cell well. The final concentration of DMSO is 0.2% and the DMSO control wells are plated in row G. The plates are then placed in the incubator for 48 hours. At 48 hours, 100 ul of media is removed from each well and analyzed by LC-MS for 2-HG concentrations. The cell plate is placed back in the incubator for another 24 hours. At 72 hours post compound addition, 10 mL/plate of Promega Cell Titer Glo reagent is thawed and mixed. The cell plate is removed from the incubator and allowed to equilibrate to room temperature. Then 100 ul of reagent is added to each well of media. The cell plate is then placed on an orbital shaker for 10 minutes and then allowed to sit at room temperature for 20 minutes. The plate is then read for luminescence with an integration time of 500 ms to determine compound effects on growth inhibition.

The data for various compounds of one aspect of the invention in the R140Q enzymatic assay, R140Q cell-based assay and R172K enzymatic assay as described above or similar thereto are presented below in Table 2. For each assay, values indicated as “A” represent an IC50 of less than 100 nM; values indicated as “B” represent an IC50 of between 100 nM and 1 μM; values indicated as “C” represent an IC50 of greater than 1 μM to 10 μM; values indicated as “D” represent an IC50 of greater than 10 μM; values indicated as “no fit” are inactives and blank values represent that the compound was either inactive or not tested in that particular assay.

TABLE 2 Enzymatic and Cellular Activity of Compounds. Cmpd Enz Cell Enz No R140Q R140Q R172K 100 A A A 103 B C C 108 B 109 B C C 110 A A B 111 A A A 112 A B B 113 A A B 114 B C C 115 A B B 116 B C 117 B C 118 A B B 119 B C D 120 A A B 121 A A A 122 B C C 123 A B B 126 A A B 128 B C C 129 A B C 130 A A B 132 A A B 133 B D 135 B C D 137 B C 139 A B C 140 A B C 141 A B B 143 A B B 145 B C D 146 A A B 147 B B C 148 B B C 149 A A A 150 B B C 151 B B B 154 A B C 155 B No Fit D 156 B B C 158 A B B 159 B B C 160 A B B 162 B C C 165 B C 167 A A B 168 A A B 169 A B B 170 B C B 172 A B B 173 A A A 174 A A B 175 A A B 176 A B B 177 A A B 178 A A A 179 A A A 181 A A B 182 B 183 A A B 184 A B C 185 A B B 186 A A B 187 A A B 188 A A B 189 A B C 190 A A B 191 A A B 193 A A B 194 A A A 195 A A B 196 A A B 197 A A B 198 A A B 199 A A A 200 A A B 201 A B C 202 A A A 203 A B C 204 A B C 205 A A B 206 A B B 207 B 208 A B B 209 A B B 210 A A B 211 A B B 212 A A B 213 A A B 214 A B B 215 A B C 216 A B B 217 A C 218 A B C 219 A A B 220 A A B 221 B B C 222 B 223 A A A 224 A B B 225 A B C 226 A B B 227 A A B 228 A B B 229 A A A 230 B B B 231 B 232 A B B 233 A A B 234 No Fit 235 B B C 236 B B C 237 B B C 238 B B C 239 A A B 240 A B C 241 A B C 242 B B C 243 B C 244 B C B 245 A B B 246 B A B 247 A A A 248 A B C 249 A B B 250 A B B 251 B 252 B C 253 A A B 254 A B B 255 A A B 256 C 257 A B B 258 C 259 B B D 260 A A A 261 A A B 262 B B C 263 A B C 264 C 265 B C 266 A B C 267 A B C 268 A B B 269 A A B 270 A B B 271 No Fit 272 B B 273 D 274 D 275 B B 276 B 277 A B 278 No Fit 279 D 280 D 281 A B 282 No Fit 283 No Fit 284 B B 285 C 286 D 287 B 288 A A 289 A B 290 B A 291 No Fit No Fit 292 No Fit No Fit 293 A A 294 No Fit No Fit 295 A A 296 B A 297 A A 298 A A 299 A B 300 B B 301 B A 302 A B 303 C No Fit 304 C No Fit 305 D No Fit 306 B A 308 A B 309 A A 310 B A 311 B B 312 B C 313 A A 314 C No Fit 315 A A 316 B B 317 A A 318 A A 319 B A 320 A A 321 A A 322 B A 323 B A 324 B C 325 A A 326 B A 327 B B 328 A A 329 A A 330 B A 331 B A 332 D No Fit 334 B A A 335 B A A 336 B A B 337 B B C 340 A A A 341 A A B 342 B C C 343 B B 344 B A A 345 B B B 346 A B 347 B 348 D 350 B B C 351 A B 352 A A 353 B A 354 B A 355 B A 356 B A 358 B A B 359 B B 360 B B 361 B B 362 B B 363 B A 364 C B 365 C 366 B A 367 B A 368 C A 369 A A 370 A A 371 A A 372 A A A 374 A A A 376 B A 377 B A 378 B A 379 B A 380 B B 381 B A 382 B A 383 B A 384 B A 385 C B 386 B A A 387 A A 388 C B 389 C A 390 C B 391 B A 392 B A 393 B A 394 A A 395 B A 396 B A 397 B B 398 A A 399 B A 400 B A 401 B A 402 B A 403 B A 404 B A 405 C B 406 B A 407 B B 408 B A 409 B A B 410 D B 411 C A 412 C 413 D 414 B B 415 D 416 A A B 450 B A 451 B A 452 B C D 454 B B C 455 B A A 456 B A B 458 B A B 459 A A A 460 A A A 461 A A A 462 B B B 463 B A A 464 B A A 465 B A A 466 B A B 467 B B B 468 B A A 469 A A A 470 B A B 471 B A B 472 A A B 473 A A A 474 B A A 475 A A A 476 A A B 477 B A A 478 B A A 479 B A B 480 B A B 481 B A A 482 B A A 483 B B C 484 B A B 485 B A B 486 B B 491 B A A 492 B A A 493 A A 495 B A A 496 B A A 497 B A B 498 B B C 499 B A A 500 B A A 501 B B C 502 B B C 503 C A A 504 B A A 505 B A B 508 B A B 509 B A B 510 B A A 511 B A B 512 B A B 513 C A B 514 B A A 516 B A A 517 B A A 518 B A A 519 B A B 521 B A A 522 B A B 523 B A A 524 B A A 526 B A A 527 B A A 528 B A B 529 B A A 530 B A B 531 B A A 532 B A A 533 B A A 534 B A A 535 B A B 536 C A B 537 B A A 538 C A B 540 B A B 541 B A B 542 B A A 543 B A B 544 B A B 545 B A B 546 B A B 547 B A A 548 B A B 549 B A A 550 B A A 551 B A A 552 B A B 554 B A B 555 B A C 556 B A A 559 B A A 560 B A A 561 B A A 562 B A A 563 B A A 564 B A A 565 B A A 567 B A A 568 B A B 569 B B B 570 B A A 571 B A B 572 B A B 574 B A A 576 B A B 577 C A B 581 B A A 582 B A A 583 B A A 584 B A A 585 B A A 587 B A A 588 B A B 592 B A B 593 B A A 594 B A B 595 B A A 596 B A A 597 B A A 598 B A A 599 B A A 600 B A A 601 B A A 602 B A A 603 B A A 604 B A A 605 B A B 606 B A A 607 B A B 608 B A A 609 B A A 610 B A A 611 B A B 612 B A A 613 B A A 614 B A A 615 B A B 616 B A A 617 B A A 618 B A A 619 B A A 621 B B C 622 B B B 623 B B C 624 B A B 625 A A B 626 B B C 627 A A A 628 A A B 629 A A A 630 A A A 631 A A A 632 B A B 633 B A A 634 B A A 635 B B B 636 A A B 637 B A B 638 B A B 639 B A A 640 A A A 641 B A A 642 B A A 644 B C 645 B A B 646 B A A 647 B A B 648 B A B 649 A B B 650 B B C 651 B A B 652 B B B 653 B A B 654 B A D 655 B B B 657 B A B 658 B A A 660 B C 662 B C 663 A A 665 A A 667 B B B 669 B A A 670 B A B 671 B A A 672 B A B 673 B A A 674 B A B 675 B A A 676 B A A 677 B A A 678 C A B 679 B B D 687 B A A 689 B A A 690 B A A 691 B A B 692 B A A 693 B A A 694 B A A 695 B A A 696 B A B 697 B B C 698 B A A 699 B A A

In some embodiments, one aspect of the invention provides a compound selected from any one of Compounds Nos 100, 110, 111, 112, 113, 115, 118, 120, 121, 123, 126, 129, 130, 132, 139, 140, 141, 143, 146, 149, 154, 158, 160, 167, 168, 169, 172, 173, 174, 175, 176, 177, 178, 179, 181, 183, 184, 185, 186, 187, 188, 189, 190, 191, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 223, 224, 225, 226, 227, 228, 229, 232, 233, 239, 240, 241, 245, 246, 247, 248, 249, 250, 253, 254, 255, 257, 260, 261, 263, 266, 267, 268, 269, 270, 277, 281, 288, 289, 290, 293, 295, 296, 297, 298, 299, 301, 302, 306, 308, 309, 310, 313, 315, 317, 318, 319, 320, 321, 322, 323, 325, 326, 328, 329, 330, 331, 334, 335, 336, 340, 341, 344, 346, 351, 352, 353, 354, 355, 356, 358, 363, 366, 367, 369, 370, 371, 372, 374, 376, 377, 378, 379, 381, 382, 383, 384, 386, 387, 391, 392, 393, 394, 395, 396, 398, 399, 400, 401, 402, 403, 404, 406, 408, 409, 416, 450, 455, 456, 458, 459, 460, 461, 463, 464, 465, 466, 468, 469, 470, 471, 472, 473, 474, 475, 476, 477, 478, 479, 480, 481, 482, 484, 485, 491, 492, 493, 495, 496, 497, 499, 500, 504, 505, 508, 509, 510, 511, 512, 514, 516, 517, 518, 519, 521, 522, 523, 524, 526, 527, 528, 529, 530, 531, 532, 533, 534, 535, 537, 540, 541, 542, 543, 544, 545, 546, 547, 548, 549, 550, 551, 552, 554, 555, 556, 559, 560, 561, 562, 563, 564, 565, 567, 568, 570, 571, 572, 574, 576, 581, 582, 583, 584, 585, 587, 588, 592, 593, 594, 595, 596, 597, 598, 599, 600, 601, 602, 603, 604, 605, 606, 607, 608, 609, 610, 611, 612, 613, 614, 615, 616, 617, 618, 619, 624, 625, 627, 628, 629, 630, 631, 632, 633, 634, 636, 637, 638, 639, 640, 641, 642, 645, 646, 647, 648, 649, 651, 653, 654, 657, 658, 663, 665, 669, 670, 671, 672, 673, 674, 675, 676, 677, 687, 689, 690, 691, 692, 693, 694, 695, 696, 698 and 699. In a more specific aspect of this embodiment, the invention provides a compound selected from any one of Compound Nos. 100, 110, 111, 113, 120, 121, 126, 130, 132, 146, 149, 167, 168, 173, 174, 175, 177, 178, 179, 181, 183, 186, 187, 188, 190, 191, 193, 194, 195, 196, 197, 198, 199, 200, 202, 205, 210, 212, 213, 219, 220, 223, 227, 229, 233, 239, 246, 247, 253, 255, 260, 261, 269, 288, 290, 293, 295, 297, 298, 301, 306, 309, 310, 313, 315, 317, 318, 319, 320, 321, 323, 325, 326, 328, 329, 330, 331, 336, 340, 341, 352, 353, 354, 355, 356, 358, 363, 366, 367, 369, 370, 371, 372, 374, 376, 377, 378, 379, 381, 382, 383, 384, 387, 391, 392, 393, 394, 395, 396, 398, 399, 400, 401, 402, 403, 404, 406, 408, 409, 416, 450, 451, 456, 458, 459, 460, 461, 466, 469, 470, 471, 472, 473, 475, 476, 479, 480, 484, 485, 493, 497, 505, 508, 509, 511, 512, 519, 522, 528, 530, 535, 540, 541, 543, 544, 545, 546, 548, 552, 554, 555, 568, 571, 572, 576, 588, 592, 594, 605, 607, 611, 615, 624, 625, 627, 628, 629, 630, 631, 632, 636, 637, 638, 640, 645, 647, 648, 651, 653, 654, 657, 663, 665, 670, 672, 674, 691 and 696.

In some embodiments, one aspect of the invention provides a compound selected from any one of Compounds Nos 100, 110, 111, 112, 113, 115, 118, 120, 121, 123, 126, 129, 130, 132, 139, 140, 141, 143, 146, 149, 154, 158, 160, 167, 168, 169, 172, 173, 174, 175, 176, 177, 178, 179, 181, 183, 184, 185, 186, 187, 188, 189, 190, 191, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 223, 224, 225, 226, 227, 228, 229, 232, 233, 239, 240, 241, 245, 246, 247, 248, 249, 250, 253, 254, 255, 257, 260, 261, 263, 266, 267, 268, 269, 270, 277, 281, 288, 289, 290, 293, 295, 296, 297, 298, 299, 301, 302, 306, 308, 309, 310, 313, 315, 317, 318, 319, 320, 321, 322, 323, 325, 326, 328, 329, 330, 331, 334, 335, 336, 340, 341, 344, 346, 351, 352, 353, 354, 355, 356, 358, 363, 366, 367, 369, 370, 371, 372, 374, 376, 377, 378, 379, 381, 382, 383, 384, 386, 387, 391, 392, 393, 394, 395, 396, 398, 399, 400, 401, 402, 403, 404, 406, 408, 409, and 416. In a more specific aspect of this embodiment, the invention provides a compound selected from any one of Compound Nos. 100, 110, 111, 113, 120, 121, 126, 130, 132, 146, 149, 167, 168, 173, 174, 175, 177, 178, 179, 181, 183, 186, 187, 188, 190, 191, 193, 194, 195, 196, 197, 198, 199, 200, 202, 205, 210, 212, 213, 219, 220, 223, 227, 229, 233, 239, 247, 253, 255, 260, 261, 269, 288, 293, 295, 297, 298, 309, 313, 315, 317, 318, 320, 321, 325, 328, 329, 340, 341, 352, 369, 370, 371, 372, 374, 387, 394, 398, and 416.

Having thus described several aspects of several embodiments, it is to be appreciated various alterations, modifications, and improvements will readily occur to those skilled in the art. Such alterations, modifications, and improvements are intended to be part of this disclosure, and are intended to be within the spirit and scope of the invention. Accordingly, the foregoing description and drawings are by way of example only. 

1-19. (canceled)
 20. A methanesulfonate salt of a compound having formula I:

wherein: ring A is selected from phenyl, oxazolyl, isoxazolyl, pyridinyl, pyrimidinyl, and thiazolyl, wherein ring A is optionally substituted with up to two substituents independently selected from halo, C₁-C₄ alkyl, C₁-C₄ haloalkyl, C₁-C₄ hydroxyalkyl, —NH—S(O)₂—C₁-C₄ alkyl, —S(O)₂—NH(C₁-C₄ alkyl), CN, S(O)₂—C₁-C₄ alkyl, C₁-C₄ alkoxy, NH(C₁-C₄ alkyl), —OH, and —NH₂; ring B is an optionally substituted 5-6 member monocyclic aryl or monocyclic heteroaryl; R¹ and R³ are each independently selected from hydrogen, C₁-C₄ alkyl, C₁-C₄ haloalkyl, —O—C₁-C₄ alkyl, and CN, wherein any alkyl portion of R¹ is optionally substituted with —OH, NH₂, NH(C₁-C₄ alkyl), or N(C₁-C₄ alkyl)₂; R² is selected from: —(C₁-C₆ alkyl), —(C₂-C₆ alkenyl or alkynyl), —(C₁-C₆ alkylene)-N(R⁶)—(C₁-C₆ alkylene)-O—(C₁-C₆ alkyl), —(C₁-C₆ alkylene)-N(R⁶)—(C₀-C₆ alkylene)-Q, —(C₁-C₆ alkylene)-N(R⁶)(R⁶), —(C₁-C₆ alkylene)-N(R⁶)—S(O)₁₋₂—(C₁-C₆ alkyl), —(C₁-C₆ alkylene)-N(R⁶)—S(O)₁₋₂—(C₀-C₆ alkyl)-Q, —(C₁-C₆ alkylene)-S(O)₁₋₂—N(R⁶)(R⁶), —(C₁-C₄ alkylene)-S(O)₁₋₂—N(R⁶)—(C₁-C₆ alkylene)-Q, —C(O)N(R⁶)—(C₁-C₆ alkylene)-C(O)— (C₀-C₆ alkylene)-O—(C₁-C₆ alkyl), —C(O)N(R⁶)—(C₁-C₆ alkylene)-C(O)—(C₀-C₆ alkylene)-O—(C₀-C₆ alkylene)-Q, —(C₁-C₆ alkylene)-O—C(O)—(C₁-C₆ alkyl), —(C₁-C₆ alkylene)-O—C(O)—(C₀-C₆ alkyl)-Q, —(C₁-C₆ alkylene)-O—(C₁-C₆ alkyl), —(C₁-C₆ alkylene)-O—(C₁-C₆ alkylene)-Q, —(C₀-C₆ alkylene)-C(O)—(C₀-C₆ alkylene)-O—(C₁-C₆ alkyl), —(C₀-C₆ alkylene)-C(O)—(C₀-C₆ alkylene)-O—(C₁-C₆ alkylene)-Q, —(C₁-C₆ alkylene)-O—C(O)—(C₁-C₆ alkyl), —(C₁-C₆ alkylene)-O—C(O)—(C₀-C₆ alkylene)-Q, —(C₀-C₆ alkylene)-C(O)N(R⁶)—(C₁-C₆ alkyl), —(C₀-C₆ alkylene)-C(O)N(R⁶)—(C₀-C₆ alkylene)-Q, —(C₁-C₆ alkylene)-N(R⁶)C(O)—(C₁-C₆ alkyl), —(C₁-C₆ alkylene)-N(R⁶)C(O)—(C₀-C₆ alkylene)-Q, —(C₀-C₆ alkylene)-S(O)₀₋₂—(C₁-C₆ alkyl), —(C₀-C₆ alkylene)-S(O)₀₋₂—(C₀-C₆ alkylene)-Q, —(C₁-C₆ alkylene)-N(R⁶)—C(O)—N(R⁶)—(C₁-C₆ alkyl), —(C₀-C₆ alkylene)-Q, —(C₀-C₆ alkylene)-C(O)—(C₁-C₆ alkyl), —(C₀-C₆ alkylene)-C(O)—(C₀-C₆ alkylene)-Q, wherein: any alkyl or alkylene moiety present in R² is optionally substituted with one or more —OH, —O(C₁-C₄ alkyl) or halo; any terminal methyl moiety present in R² is optionally replaced with —CH₂OH, CF₃, —CH₂F, —CH₂Cl, C(O)CH₃, C(O)CF₃, CN, or CO₂H; each R⁶ is independently selected from hydrogen and C₁-C₆ alkyl; and Q is selected from aryl, heteroaryl, carbocyclyl and heterocyclyl, any of which is optionally substituted; or R¹ and R³ are optionally taken together with the carbon to which they are attached to form C(═O), or R¹ and R² are optionally taken together to form substituted carbocyclyl, or optionally substituted heterocyclyl, wherein: (a) when ring A is unsubstituted phenyl, and ring B is phenyl substituted by methoxy or ethoxy; then said phenyl of ring B is not further substituted by oxazolyl; (b) when ring A is optionally substituted phenyl or optionally substituted pyridyl and ring B is optionally substituted phenyl; then the portion of the compound represented by —NH—C(R¹)(R²)(R³) is not —NH(CH₂)-aryl; (c) when ring A is optionally substituted phenyl, and ring B is optionally substituted phenyl or pyrrolyl; then the portion of the compound represented by —NH—C(R¹)(R²)(R³) is not —NH(CH₂)C(O)NH₂; (d) when ring A is phenyl substituted with 2 hydroxyl or methoxy, and ring B is optionally substituted phenyl; then the portion of the compound represented by —NH—C(R¹)(R²)(R³) is not —NH-cycloheptyl; (e) when ring A is optionally substituted phenyl and ring B is optionally substituted phenyl; then R¹ and R² do not form 2,2,6,6-tetramethylpiperidin-4-yl; (f) when ring A and ring B are optionally substituted phenyl; then the portion of the compound represented by —NH—C(R¹)(R²)(R³) is not cysteine, optionally substituted phenylalanine or leucine; or methyl ester thereof; (g) when ring A is phenyl or pyridin-3-yl optionally substituted with one or more substituents selected from halo, methyl or CF₃, and ring B is phenyl optionally substituted with one or more substituents selected from halo, methyl or CF₃, methoxy, or CH═C(phenyl)CN; then the portion of the compound represented by —NHC(R¹)(R²)(R³) is other than —NH(C₁-C₈ alkylene)-N(R^(a))(R^(a)), —NH-1-(aminomethyl)cyclopentylmethyl, —NH-4-(aminomethyl)cyclohexylmethyl, wherein each R^(a) is hydrogen, C₁-C₄ alkyl or two R^(a)s are taken together with the nitrogen to which they are commonly bound to form morpholin-4-yl or piperidin-1-yl; (h) when ring A is phenyl, 4-chlorophenyl or 4-methylphenyl and ring B is 4-chlorophenyl or 3,4-dichlorophenyl; then the portion of the compound represented by —NHC(R¹)(R²)(R³) is not —NH-isopropyl; (i) when ring A is unsubstituted phenyl and the portion of the compound represented by —NHC(R¹)(R²)(R³) is —NH—CH₂CH₂N(CH₃)₂, —NH—CH₂CH₂-morpholin-4-yl or —NH—CH₂CH₂OH; then ring B is other than oxadiazole, imidazole, thiazole or oxazole each of which is substituted with —C(O)NHR^(b), wherein R^(b) is isopropyl, cyclopropyl or 2-chloro-6-methylphenyl; and (j) the compound is other than: (E)-3-(4-((4-((3-(diethylamino)propyl)amino)-6-phenyl-1,3,5-triazin-2-yl)amino)-2-methoxyphenyl)-2-phenylacrylonitrile, 4-((4-((furan-2-ylmethyl)amino)-6-(pyridin-4-yl)-1,3,5-triazin-2-yl)amino)phenol, 3-(4-((5-aminopentyl)amino)-6-((3-fluorophenyl)amino)-1,3,5-triazin-2-yl)phenol, N²,6-bis(3-fluorophenyl)-N⁴-(piperidin-3-yl)-1,3,5-triazine-2,4-diamine, N²-butyl-6-phenyl-N⁴-(p-tolyl)-1,3,5-triazine-2,4-diamine, N²-cyclohexyl-N⁴,6-diphenyl-1,3,5-triazine-2,4-diamine, (R)-3-((4-(3-chlorophenyl)-6-(pyrrolidin-3-ylamino)-1,3,5-triazin-2-yl)amino)-4-methylbenzamide, 2-chloro-4-(methylsulfonyl)-N-[4-(phenylamino)-6-(2-pyridinyl)-1,3,5-triazin-2-yl]-benzamide, N²-(2-methoxyethyl)-N⁴-phenyl-6-[5-[6-(2,2,2-trifluoroethoxy)-3-pyridinyl]-1,2,4-oxadiazol-3-yl]1,3,5-triazine-2,4-diamine, N²-(2-furanylmethyl)-6-phenyl-N⁴-[3-(trifluoromethyl)phenyl]-1,3,5-triazine-2,4-diamine, 6-(3-methoxyphenyl)-N²-methyl-N⁴-(3-nitrophenyl)-1,3,5-triazine-2,4-diamine, N²-butyl-N⁴-(4-methylphenyl)-6-phenyl-1,3,5-triazine-2,4-diamine, and 4-[4-(5-chloro-2-methylphenyl)-6-(methylamino)-1,3,5-triazin-2-yl]amino-benzenemethanol.
 21. The methanesulfonate salt of claim 20, wherein R¹ is independently selected from hydrogen, —CH₃, —CH₂CH₃, CH₂OH, CN, or R¹ and R³ are taken together to form ═O.
 22. The methanesulfonate salt of claim 20, wherein R¹ and R² are taken together to form substituted carbocyclyl or optionally substituted heterocyclyl, wherein the substituents, when present, are independently selected from halo, C₁-C₄ alkyl, C₁-C₄ haloalkyl, C₁-C₄ alkoxy, CN, ═O, —OH, and —C(O)C₁-C₄ alkyl.
 23. The methanesulfonate salt of claim 20, wherein R² is selected from: —(C₁-C₄ alkyl) optionally substituted with fluoro or —OH; —(C₀-C₄ alkylene)-O—(C₁-C₄ alkyl), —(C₀-C₂ alkylene)-N(R⁶)—(C₁-C₆ alkyl), —(C₀-C₂ alkylene)-Q, and —O—(C₀-C₂ alkylene)-Q, wherein Q is optionally substituted with up to 3 substituents independently selected from C₁-C₄ alkyl, C₁-C₄ haloalkyl, C₁-C₄ alkoxy, ═O, —C(O)—C₁-C₄ alkyl, —CN, and halo.
 24. The methanesulfonate salt of claim 20, wherein ring B is selected from phenyl, pyrazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrimidinyl, pyridazinyl, pyrazinyl, and thiazolyl, wherein ring B is optionally substituted with up to two substituents independently selected from halo, C₁-C₄ alkyl, C₂-C₄ alkynyl, C₁-C₄ haloalkyl, C₁-C₄ hydroxyalkyl, C₃-C₆ cycloalkyl, (C₀-C₂ alkylene)-O—C₁-C₄ alky), —O—(C₁-C₄ alkylene)-C₃-C₆ cycloalkyl, —NH—S(O)₂—(C₁-C₄ alkyl), —S(O)₂—NH(C₁-C₄ alkyl), —S(O)₂—NH—(C₃-C₆ cycloalkyl), —S(O)₂-(saturated heterocyclyl), —CN, —S(O)₂—(C₁-C₄ alkyl), —NH(C₁-C₄ alkyl), —NH(C₁-C₄ alkyl)₂, —OH, C(O)—O—(C₁-C₄ alkyl), saturated heterocyclyl, and —NH₂.
 25. The methanesulfonate salt of claim 20, wherein R¹ is independently selected from hydrogen, —CH₃, —CH₂CH₃, CH₂OH, CN, or R¹ and R³ are taken together to form ═O; R² is selected from: —(C₁-C₄ alkyl) optionally substituted with fluoro or —OH; —(C₀-C₄ alkylene)-O—(C₁-C₄ alkyl), —(C₀-C₂ alkylene)-N(R⁶)—(C₁-C₆ alkyl), —(C₀-C₂ alkylene)-Q, and —O—(C₀-C₂ alkylene)-Q, wherein Q is optionally substituted with up to 3 substituents independently selected from C₁-C₄ alkyl, C₁-C₄ haloalkyl, C₁-C₄ alkoxy, ═O, —C(O)—C₁-C₄ alkyl, —CN, and halo; and B is selected from phenyl, pyrazolyl, oxazolyl, isoxazolyl, pyridinyl, pyrimidinyl, pyridazinyl, pyrazinyl, and thiazolyl, wherein ring B is optionally substituted with up to two substituents independently selected from halo, C₁-C₄ alkyl, C₂-C₄ alkynyl, C₁-C₄ haloalkyl, C₁-C₄ hydroxyalkyl, C₃-C₆ cycloalkyl, (C₀-C₂ alkylene)-O—C₁-C₄ alky), —O—(C₁-C₄ alkylene)-C₃-C₆ cycloalkyl, —NH—S(O)₂—(C₁-C₄ alkyl), —S(O)₂—NH(C₁-C₄ alkyl), —S(O)₂—NH—(C₃-C₆ cycloalkyl), —S(O)₂-(saturated heterocyclyl), —CN, —S(O)₂—(C₁-C₄ alkyl), —NH(C₁-C₄ alkyl), —NH(C₁-C₄ alkyl)₂, —OH, C(O)—O—(C₁-C₄ alkyl), saturated heterocyclyl, and —NH₂.
 26. The methanesulfonate salt of claim 20, wherein the compound of formula I is selected from


27. A pharmaceutical composition comprising the methanesulfonate salt of claim 20, and a pharmaceutically acceptable carrier.
 28. A method of treating a cancer characterized by the presence of an IDH2 mutation, wherein the IDH2 mutation results in a new ability of the enzyme to catalyze the NAPH dependent reduction of α ketoglutarate to R(−) 2 hydroxyglutarate in a patient, comprising the step of administering to the patient in need thereof the methanesulfonate salt of claim
 20. 29. The method of claim 28, wherein the IDH2 mutation is an IDH2 R140Q or R172K mutation.
 30. The method of claim 28, wherein the IDH2 mutation is an IDH2 R140Q mutation.
 31. The method of claim 28, wherein the cancer is selected from glioblastoma, myelodysplastic syndrome, myeloproliferative neoplasm, acute myelogenous leukemia, sarcoma, melanoma, non-small cell lung cancer, chondrosarcoma, cholangiocarcinomas or angioimmunoblastic non-Hodgkin's lymphoma.
 32. The method of claim 28, wherein the cancer is acute myelogenous leukemia.
 33. The method of claim 28, further comprising administering to the patient in need thereof a second therapeutic agent useful in the treatment of cancer. 